Answer: 10.34%
Step-by-step explanation:
First calculate the value of the company's total capital:
= Common stock + Preferred stock + Debt
= (11,700,000 * 26.70) + (6,700,000 * 14.20) + (2,700,000 * 96.83/100 * 1,000 par value)
= $3,021,940,000
The weight to be used for common stock is:
= Common stock value / Total capital value
= (11,700,000 * 26.70) / 3,021,940,000
= 312,390,000 / 3,021,940,000
= 10.34%