Finding the Fourth Proportional to 115,606.52, 173,444.78 and 81,937.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,606.52 : 173,444.78 = 81,937.72 : x
2. Step 2: Convert to fraction form
   115,606.52/173,444.78 = 81,937.72/x
3. Step 3: Cross multiply
   115,606.52x = 173,444.78 × 81,937.72
4. Step 4: Simplify right side
   115,606.52x = 14,211,669,819.10
5. Step 5: Solve for x
   x = 14,211,669,819.10/115,606.52
6. Step 6: Final answer
   x = 122,931.39