Finding the Fourth Proportional to 424,091.76, 636,137.04 and 108,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   424,091.76 : 636,137.04 = 108,548.72 : x
2. Step 2: Convert to fraction form
   424,091.76/636,137.04 = 108,548.72/x
3. Step 3: Cross multiply
   424,091.76x = 636,137.04 × 108,548.72
4. Step 4: Simplify right side
   424,091.76x = 69,051,861,436.59
5. Step 5: Solve for x
   x = 69,051,861,436.59/424,091.76
6. Step 6: Final answer
   x = 162,822.93