A contractor wishes to set up a special fund by making uniform semiannual end-of-period deposits for 20

Question:

A contractor wishes to set up a special fund by making uniform semiannual end-of-period deposits for 20 years. The fund is to provide $10,000 at the enc of each of the last 5 years of the 20-year period. 1.1. interest is 8%, compounded semiannually, what is the required semiannual deposit?