Finding the Fourth Proportional to 137,041.86, 189,117 and 76,612.62

Step by Step Solution

1. Step 1: Write the proportion equation
   137,041.86 : 189,117 = 76,612.62 : x
2. Step 2: Convert to fraction form
   137,041.86/189,117 = 76,612.62/x
3. Step 3: Cross multiply
   137,041.86x = 189,117 × 76,612.62
4. Step 4: Simplify right side
   137,041.86x = 14,488,748,856.54
5. Step 5: Solve for x
   x = 14,488,748,856.54/137,041.86
6. Step 6: Final answer
   x = 105,724.99