Finding the Fourth Proportional to 498,238.92, 687,571.61 and 271,884.42

Step by Step Solution

1. Step 1: Write the proportion equation
   498,238.92 : 687,571.61 = 271,884.42 : x
2. Step 2: Convert to fraction form
   498,238.92/687,571.61 = 271,884.42/x
3. Step 3: Cross multiply
   498,238.92x = 687,571.61 × 271,884.42
4. Step 4: Simplify right side
   498,238.92x = 186,940,007,033.89
5. Step 5: Solve for x
   x = 186,940,007,033.89/498,238.92
6. Step 6: Final answer
   x = 375,201.53