Finding the Fourth Proportional to 11,078,265.60, 16,603,401.60 and 5,386,233.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,078,265.60 : 16,603,401.60 = 5,386,233.60 : x
2. Step 2: Convert to fraction form
   11,078,265.60/16,603,401.60 = 5,386,233.60/x
3. Step 3: Cross multiply
   11,078,265.60x = 16,603,401.60 × 5,386,233.60
4. Step 4: Simplify right side
   11,078,265.60x = 89,429,799,572,213.75
5. Step 5: Solve for x
   x = 89,429,799,572,213.75/11,078,265.60
6. Step 6: Final answer
   x = 8,072,545.18