Finding the Fourth Proportional to 424,468.22, 636,567 and 140,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   424,468.22 : 636,567 = 140,105.96 : x
2. Step 2: Convert to fraction form
   424,468.22/636,567 = 140,105.96/x
3. Step 3: Cross multiply
   424,468.22x = 636,567 × 140,105.96
4. Step 4: Simplify right side
   424,468.22x = 89,186,830,639.32
5. Step 5: Solve for x
   x = 89,186,830,639.32/424,468.22
6. Step 6: Final answer
   x = 210,114.27