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

### Instruction:
A library cabinet houses five ancient scrolls. The first scroll is 4080 years old. If each scroll is older than the last by half as many years as the last scroll’s age, how old is the fifth scroll?

### Response:
 Nyaraka ya pili ina umri wa 4080 + 4080 / 2 = 4000 + 2040 = <<4080+4080/2=6120>>6120 miaka.
Nyaraka ya tatu ina umri wa 6120 + 6120 / 2 = 6120 + 3060 = <<6120+6120/2=9180>>9180 miaka.
Nyaraka ya nne ina umri wa 9180 + 9180 / 2 = 9180 + 4590 = <<9180+9180/2=13770>>13770 miaka.
Nyaraka ya tano ina umri wa 13770 + 13770 / 2 = 13770 + 6885 = <<13770+13770/2=20655>>20655 miaka.