Answer:
$87,120
Step-by-step explanation:
The computation of amount of prior service cost amortization is shown below:-
Year Annual Amortization
2020 ($87,120 × 5 ÷ 24) $18,150
2021 ($87,120 × 5 ÷ 24) $18,150
2022 ($87,120 × 5 ÷ 24) $18,150
2023 ($87,120 × 4 ÷ 24) $14,520
2024 ($87,120 × 3 ÷ 24) $10,890
2025 ($87,120 × 2 ÷ 24) $7,260
Total $87,120
So, the amount of prior service cost amortization is $87,120