Finding the Fourth Proportional to 125,901.27, 173,725.83 and 72,188.55

Step by Step Solution

1. Step 1: Write the proportion equation
   125,901.27 : 173,725.83 = 72,188.55 : x
2. Step 2: Convert to fraction form
   125,901.27/173,725.83 = 72,188.55/x
3. Step 3: Cross multiply
   125,901.27x = 173,725.83 × 72,188.55
4. Step 4: Simplify right side
   125,901.27x = 12,541,015,765.25
5. Step 5: Solve for x
   x = 12,541,015,765.25/125,901.27
6. Step 6: Final answer
   x = 99,609.92