Finding the Fourth Proportional to 114.52, 158.02 and 64.72

Step by Step Solution

1. Step 1: Write the proportion equation
   114.52 : 158.02 = 64.72 : x
2. Step 2: Convert to fraction form
   114.52/158.02 = 64.72/x
3. Step 3: Cross multiply
   114.52x = 158.02 × 64.72
4. Step 4: Simplify right side
   114.52x = 10,227.53
5. Step 5: Solve for x
   x = 10,227.53/114.52
6. Step 6: Final answer
   x = 89.31