Finding the Fourth Proportional to 8,787,517.88, 13,171,976.42 and 3,998,570.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,787,517.88 : 13,171,976.42 = 3,998,570.15 : x
2. Step 2: Convert to fraction form
   8,787,517.88/13,171,976.42 = 3,998,570.15/x
3. Step 3: Cross multiply
   8,787,517.88x = 13,171,976.42 × 3,998,570.15
4. Step 4: Simplify right side
   8,787,517.88x = 52,669,071,729,515.86
5. Step 5: Solve for x
   x = 52,669,071,729,515.86/8,787,517.88
6. Step 6: Final answer
   x = 5,993,623.28