Finding the Fourth Proportional to 362,150.79, 499,793.27 and 209,240.61

Step by Step Solution

1. Step 1: Write the proportion equation
   362,150.79 : 499,793.27 = 209,240.61 : x
2. Step 2: Convert to fraction form
   362,150.79/499,793.27 = 209,240.61/x
3. Step 3: Cross multiply
   362,150.79x = 499,793.27 × 209,240.61
4. Step 4: Simplify right side
   362,150.79x = 104,577,047,642.49
5. Step 5: Solve for x
   x = 104,577,047,642.49/362,150.79
6. Step 6: Final answer
   x = 288,766.59