Answer:
quarterly coupon payment = $22.25
Step-by-step explanation:
effective annual interest rate of current bonds = (1 + 9%/2)² - 1 = 9.2025%
if the new bonds will have quarterly payments, then the nominal interest rate should be:
1.092025 = (1 + r/4)⁴
⁴√1.092025 = ⁴√(1 + r/4)⁴
1.02225 = 1 + r/4
0.02225 = r/4
r = 8.9% annual
quarterly rate = 2.225%
quarterly coupon payment = $22.25