Finding the Fourth Proportional to 124.52, 171.82 and 72.08

Step by Step Solution

1. Step 1: Write the proportion equation
   124.52 : 171.82 = 72.08 : x
2. Step 2: Convert to fraction form
   124.52/171.82 = 72.08/x
3. Step 3: Cross multiply
   124.52x = 171.82 × 72.08
4. Step 4: Simplify right side
   124.52x = 12,384.79
5. Step 5: Solve for x
   x = 12,384.79/124.52
6. Step 6: Final answer
   x = 99.46