Question 847088
Use the change of base formula:


*[tex \large \log_a b = \frac{\log_c b}{\log_c a}]


For this problem it might be easier to convert *[tex \large \log_x x+4] to base 3:


*[tex \large \log_x x+4 = \frac{\log_3 x+4}{\log_3 x}]


Hopefully you can solve it from there.