Finding the Fourth Proportional to 612,142.92, 844,660.71 and 353,923.83

Step by Step Solution

1. Step 1: Write the proportion equation
   612,142.92 : 844,660.71 = 353,923.83 : x
2. Step 2: Convert to fraction form
   612,142.92/844,660.71 = 353,923.83/x
3. Step 3: Cross multiply
   612,142.92x = 844,660.71 × 353,923.83
4. Step 4: Simplify right side
   612,142.92x = 298,945,553,533.72
5. Step 5: Solve for x
   x = 298,945,553,533.72/612,142.92
6. Step 6: Final answer
   x = 488,359.08