Solution:
we are given that 
A farmer raised 60 goats, then entered into a series of business transactions. He traded all the goats for sheep at an exchange rate of 5 goats for 7 sheep. 
since 

It mean he get 
 ships in exchange.
Next, he exchanged all the sheep for hogs at a a rate of 4 sheep for 2 hogs weighing 250 lbs.
Again 

It mean he get 
 hogs in exchange.
Each weighing 250 lbs.
So Total weight of 42 hogs
 lb
He sold all the hogs at a market price of $55.00 per 100.0 lbs. 
Again 

So he get 
 $
So total money he made =5775$