Finding the Fourth Proportional to 124.00, 171.25 and 82.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124.00 : 171.25 = 82.72 : x
2. Step 2: Convert to fraction form
   124.00/171.25 = 82.72/x
3. Step 3: Cross multiply
   124.00x = 171.25 × 82.72
4. Step 4: Simplify right side
   124.00x = 14,165.39
5. Step 5: Solve for x
   x = 14,165.39/124.00
6. Step 6: Final answer
   x = 114.24