Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Thomas wants to throw a party for his best friend Casey. He needs to order enough chairs for all the party guests to sit in, one for each guest. First he orders 3 dozen chairs for 3 dozen guests he invites. Then he finds out that 1/3 of the guests want to bring a guest of their own, so Thomas needs to order more chairs. Eventually, Thomas finds out that 5 of the guests he originally invited can't make it. Thomas would also like to order 12 extra chairs just in case they need them. How many chairs is Thomas going to order for Casey's party?

### Response:
 Thomas anaanza kwa kuagiza viti kwa ajili ya wageni 3 dazeni, 12 x 3 = 36 wageni.
Thomas anagundua kuwa 1/3 ya wageni wanataka kuja na mgeni wao, 1/3 ya 36 = 12.
Wageni hao 12 wanakuja na mgeni wao mmoja kila mmoja, 36 wageni + 12 wageni = <<36+12=48>>48.
Thomas anagundua kuwa wageni 5 kati yao hawawezi kufika, 48 wageni - 5 wageni = <<48-5=43>>43.
Thomas anataka kuagiza viti ziada 12, 43 + 12 = <<43+12=55>>55.
Thomas atahitaji viti 55 kwa sherehe.