Answer: 7.43%
Step-by-step explanation:
The yield to maturity simply refers to the total return that is expected on a bond as long as the bond is held till it matures.
In this case, since the investor is indifferent between this municipal bond and an otherwise identical taxable corporate bond, the yield to maturity of the corporate bond will be:
4.83% = Corporate bond YTM × ( 1- 35%)
4.83% = Corporate bond YTM × 65%
Corporate bond YTM = 4.83% / 65%
Corporate bond YTM = 0.0483/0.65
Corporate bond YTM = 7.43%
The yield to maturity of the corporate bond is 7.43%