Finding the Fourth Proportional to 498,339.83, 747,483.62 and 143,339.91

Step by Step Solution

1. Step 1: Write the proportion equation
   498,339.83 : 747,483.62 = 143,339.91 : x
2. Step 2: Convert to fraction form
   498,339.83/747,483.62 = 143,339.91/x
3. Step 3: Cross multiply
   498,339.83x = 747,483.62 × 143,339.91
4. Step 4: Simplify right side
   498,339.83x = 107,144,234,100.58
5. Step 5: Solve for x
   x = 107,144,234,100.58/498,339.83
6. Step 6: Final answer
   x = 215,002.35