Finding the Fourth Proportional to 94.31, 141.34 and 72.54

Step by Step Solution

1. Step 1: Write the proportion equation
   94.31 : 141.34 = 72.54 : x
2. Step 2: Convert to fraction form
   94.31/141.34 = 72.54/x
3. Step 3: Cross multiply
   94.31x = 141.34 × 72.54
4. Step 4: Simplify right side
   94.31x = 10,252.80
5. Step 5: Solve for x
   x = 10,252.80/94.31
6. Step 6: Final answer
   x = 108.71