Finding the Fourth Proportional to 437,429.20, 603,658.89 and 243,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   437,429.20 : 603,658.89 = 243,831.50 : x
2. Step 2: Convert to fraction form
   437,429.20/603,658.89 = 243,831.50/x
3. Step 3: Cross multiply
   437,429.20x = 603,658.89 × 243,831.50
4. Step 4: Simplify right side
   437,429.20x = 147,191,051,417.88
5. Step 5: Solve for x
   x = 147,191,051,417.88/437,429.20
6. Step 6: Final answer
   x = 336,491.15