Finding the Fourth Proportional to 123,649,568.96, 185,474,993.28 and 72,495,715.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,649,568.96 : 185,474,993.28 = 72,495,715.52 : x
2. Step 2: Convert to fraction form
   123,649,568.96/185,474,993.28 = 72,495,715.52/x
3. Step 3: Cross multiply
   123,649,568.96x = 185,474,993.28 × 72,495,715.52
4. Step 4: Simplify right side
   123,649,568.96x = 13,446,142,348,900,792
5. Step 5: Solve for x
   x = 13,446,142,348,900,792/123,649,568.96
6. Step 6: Final answer
   x = 108,743,948.42