If a firm has a weighted-average cost of capital (WACC) of 8.94%, a required return on debt of 2.378% and a required return on equity of 10.214%, what proportion of the firm's capital structure is equity if the firm pays 25% in taxes? Assume no preferred stock. Enter your answer as a decimal, e.g. 0.3456 for 34.56%, not 34.56.