Finding the Fourth Proportional to 478,809.43, 718,155.61 and 123,793.72

Step by Step Solution

1. Step 1: Write the proportion equation
   478,809.43 : 718,155.61 = 123,793.72 : x
2. Step 2: Convert to fraction form
   478,809.43/718,155.61 = 123,793.72/x
3. Step 3: Cross multiply
   478,809.43x = 718,155.61 × 123,793.72
4. Step 4: Simplify right side
   478,809.43x = 88,903,154,500.77
5. Step 5: Solve for x
   x = 88,903,154,500.77/478,809.43
6. Step 6: Final answer
   x = 185,675.45