Finding the Fourth Proportional to 102.72, 141.01 and 94.52

Step by Step Solution

1. Step 1: Write the proportion equation
   102.72 : 141.01 = 94.52 : x
2. Step 2: Convert to fraction form
   102.72/141.01 = 94.52/x
3. Step 3: Cross multiply
   102.72x = 141.01 × 94.52
4. Step 4: Simplify right side
   102.72x = 13,327.32
5. Step 5: Solve for x
   x = 13,327.32/102.72
6. Step 6: Final answer
   x = 129.74