Use Excel to answer this question

The BIG Corporation issued 12-year bonds on 10 Feb 2010. Each of these bonds has a face value of $10,000 and they are currently trading at a yield of 11.50% per annum. The bonds pay quarterly coupons at an annual rate of 7.75% per annum.

(a) Compute the price of each bond of the BIG Corporation on the settlement date (07-Feb-2015). This is the "clean price", excluding any accrued interest. Please use Actual/Actual as the interest rate basis.

(b) Use Goal Seek to find the YTM that would justify a price of exactly $9,000 for each of these bonds. Outline the steps you have used to obtain the answer.