To simplify the expression, let's break it down step by step:
First, let's find the fourth power of 3:
3^4 = 3 * 3 * 3 * 3 = 81
Next, let's find the square root of 27:
√27 = √(9 * 3) = √9 * √3 = 3 * √3 = 3√3
Finally, let's multiply the two results together:
81 * 3√3 = 243√3
So, the simplified form of the expression is 243√3