Answer:
$205,592
Explanation:
Interest cost is the Present Value of this $ 20,000 annuity streams at time zero i.e. ( Year 2022
Value of annuity stream = $ 20,000 x 11.11839
Present Value of annuity streams at 2015 =$ 222,367.80
Discount Factor for 2017 = (1.04)-2 = 0.92456
Present Value at 2022= $ 222,367.80 x 0.92456
Service Cost= $ 205,592