Finding the Fourth Proportional to 152,966.43, 229,425.91 and 78,141.87

Step by Step Solution

1. Step 1: Write the proportion equation
   152,966.43 : 229,425.91 = 78,141.87 : x
2. Step 2: Convert to fraction form
   152,966.43/229,425.91 = 78,141.87/x
3. Step 3: Cross multiply
   152,966.43x = 229,425.91 × 78,141.87
4. Step 4: Simplify right side
   152,966.43x = 17,927,769,438.50
5. Step 5: Solve for x
   x = 17,927,769,438.50/152,966.43
6. Step 6: Final answer
   x = 117,200.68