Finding the Fourth Proportional to 150,470.50, 207,649.32 and 83,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,470.50 : 207,649.32 = 83,402.50 : x
2. Step 2: Convert to fraction form
   150,470.50/207,649.32 = 83,402.50/x
3. Step 3: Cross multiply
   150,470.50x = 207,649.32 × 83,402.50
4. Step 4: Simplify right side
   150,470.50x = 17,318,472,411.30
5. Step 5: Solve for x
   x = 17,318,472,411.30/150,470.50
6. Step 6: Final answer
   x = 115,095.47