Question $14$ Find the value or values of $c$ that satisfy the equation $\frac{f(b)-f(a)}{b-a}=f(c)$ in the conclusion of the Mean Value Theorem for the function and interval. $f(x)=ln(x-4),[5,8]6\mathrm{.}1646\mathrm{.}731+-6\mathrm{.}1647\mathrm{.}164$ Round to the nearest thousandth.