Finding the Fourth Proportional to 424,404.12, 636,606.32 and 108,861.04

Step by Step Solution

1. Step 1: Write the proportion equation
   424,404.12 : 636,606.32 = 108,861.04 : x
2. Step 2: Convert to fraction form
   424,404.12/636,606.32 = 108,861.04/x
3. Step 3: Cross multiply
   424,404.12x = 636,606.32 × 108,861.04
4. Step 4: Simplify right side
   424,404.12x = 69,301,626,065.77
5. Step 5: Solve for x
   x = 69,301,626,065.77/424,404.12
6. Step 6: Final answer
   x = 163,291.60