Finding the Fourth Proportional to 89,793.28, 123,909.06 and 49,504.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,793.28 : 123,909.06 = 49,504.78 : x
2. Step 2: Convert to fraction form
   89,793.28/123,909.06 = 49,504.78/x
3. Step 3: Cross multiply
   89,793.28x = 123,909.06 × 49,504.78
4. Step 4: Simplify right side
   89,793.28x = 6,134,090,755.31
5. Step 5: Solve for x
   x = 6,134,090,755.31/89,793.28
6. Step 6: Final answer
   x = 68,313.47