Finding the Fourth Proportional to 126,618.96, 174,787.98 and 78,895.89

Step by Step Solution

1. Step 1: Write the proportion equation
   126,618.96 : 174,787.98 = 78,895.89 : x
2. Step 2: Convert to fraction form
   126,618.96/174,787.98 = 78,895.89/x
3. Step 3: Cross multiply
   126,618.96x = 174,787.98 × 78,895.89
4. Step 4: Simplify right side
   126,618.96x = 13,790,053,243.40
5. Step 5: Solve for x
   x = 13,790,053,243.40/126,618.96
6. Step 6: Final answer
   x = 108,909.86