Williams, Inc., has compiled the following information on its financing costs: Types of Financing Book Value Market Value Cost Short-term debt $12,242,446 $13,840,175 4.6% Long-term debt $25,586,181 $27,370,453 7.5% Common Stock $8,815,659 $63,494,607 13.4% The company is in the 36% tax bracket. What is the company's weighted average cost of capital using market value weights