Finding the Fourth Proportional to 11,569,401.60, 17,337,513.60 and 8,512,915.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,569,401.60 : 17,337,513.60 = 8,512,915.20 : x
2. Step 2: Convert to fraction form
   11,569,401.60/17,337,513.60 = 8,512,915.20/x
3. Step 3: Cross multiply
   11,569,401.60x = 17,337,513.60 × 8,512,915.20
4. Step 4: Simplify right side
   11,569,401.60x = 147,592,783,055,646.72
5. Step 5: Solve for x
   x = 147,592,783,055,646.72/11,569,401.60
6. Step 6: Final answer
   x = 12,757,166.55