Finding the Fourth Proportional to 137,158.52, 189,285.89 and 76,730.17

Step by Step Solution

1. Step 1: Write the proportion equation
   137,158.52 : 189,285.89 = 76,730.17 : x
2. Step 2: Convert to fraction form
   137,158.52/189,285.89 = 76,730.17/x
3. Step 3: Cross multiply
   137,158.52x = 189,285.89 × 76,730.17
4. Step 4: Simplify right side
   137,158.52x = 14,523,938,518.30
5. Step 5: Solve for x
   x = 14,523,938,518.30/137,158.52
6. Step 6: Final answer
   x = 105,891.62