Finding the Fourth Proportional to 125,506.86, 173,200.41 and 71,788.56

Step by Step Solution

1. Step 1: Write the proportion equation
   125,506.86 : 173,200.41 = 71,788.56 : x
2. Step 2: Convert to fraction form
   125,506.86/173,200.41 = 71,788.56/x
3. Step 3: Cross multiply
   125,506.86x = 173,200.41 × 71,788.56
4. Step 4: Simplify right side
   125,506.86x = 12,433,808,025.31
5. Step 5: Solve for x
   x = 12,433,808,025.31/125,506.86
6. Step 6: Final answer
   x = 99,068.75