Finding the Fourth Proportional to 15,404,847.96, 21,258,951.49 and 8,435,414.42

Step by Step Solution

1. Step 1: Write the proportion equation
   15,404,847.96 : 21,258,951.49 = 8,435,414.42 : x
2. Step 2: Convert to fraction form
   15,404,847.96/21,258,951.49 = 8,435,414.42/x
3. Step 3: Cross multiply
   15,404,847.96x = 21,258,951.49 × 8,435,414.42
4. Step 4: Simplify right side
   15,404,847.96x = 179,328,065,936,797.06
5. Step 5: Solve for x
   x = 179,328,065,936,797.06/15,404,847.96
6. Step 6: Final answer
   x = 11,641,014.99