Medium Inc. has a capital structure consisting of $50\%$ common shares, $20\%$ preferred shares and $30\%$ debt and a corporate tax rate of $40\%.$ The company$$s common shares are currently selling for $$50$ per share. The common share dividends have grown from $$3$ to $$3\mathrm{.}50($just paid$)$ over the last $4$ years and this level of growth is expected to continue. Flotation costs are estimated at $5\%.$ Its $9\%$ preferred shares have a face value of $$70$ and are currently selling for $$85.$ Flotation costs for the preferred shares are estimated at $4\%.$ The company$$s $8\%$ bonds currently yield $6\%$ with flotation costs being estimated at $2\%.$

Required: Calculate the company$$s weighted average cost of capital