Finding the Fourth Proportional to 124,284.76, 171,472.06 and 72,589.98

Step by Step Solution

1. Step 1: Write the proportion equation
   124,284.76 : 171,472.06 = 72,589.98 : x
2. Step 2: Convert to fraction form
   124,284.76/171,472.06 = 72,589.98/x
3. Step 3: Cross multiply
   124,284.76x = 171,472.06 × 72,589.98
4. Step 4: Simplify right side
   124,284.76x = 12,447,153,405.96
5. Step 5: Solve for x
   x = 12,447,153,405.96/124,284.76
6. Step 6: Final answer
   x = 100,150.28