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

### Instruction:
Ronnie is a train engineer.  His train pulls 3 red boxcars, 4 blue boxcars, and 7 black boxcars.  If the black boxcars can each hold 4000 pounds of coal, which is half as much as what the blue boxcars can hold, and the red boxcars can hold 3 times as much as the blue boxcars, how many pounds of coal can all of the train's boxcars combined hold?

### Response:
 Ikiwa tunawakilisha X kuwa idadi ya tani za makaa ya mawe ambayo gari la rangi ya bluu linaweza kubeba, basi 4000=(1/2)X.
Kwa kusuluhisha X, tunapata X=8000.
Gari la rangi nyekundu linaweza kubeba tani 3*8000=24000 za makaa ya mawe.
Magari 3 ya rangi nyekundu yanaweza kubeba tani 3*24000=72000 za makaa ya mawe.
Magari 7 ya rangi nyeusi yanaweza kubeba tani 7*4000=<<7*4000=28000>>28000 za makaa ya mawe.
Magari 4 ya rangi ya bluu yanaweza kubeba tani 4*8000=<<4*8000=32000>>32000 za makaa ya mawe.
Kwa pamoja, magari yote ya treni yanaweza kubeba tani 72000+28000+32000=<<72000+28000+32000=132000>>132000 za makaa ya mawe.