Finding the Fourth Proportional to 8,309,401.26, 12,465,717.85 and 3,191,456.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309,401.26 : 12,465,717.85 = 3,191,456.78 : x
2. Step 2: Convert to fraction form
   8,309,401.26/12,465,717.85 = 3,191,456.78/x
3. Step 3: Cross multiply
   8,309,401.26x = 12,465,717.85 × 3,191,456.78
4. Step 4: Simplify right side
   8,309,401.26x = 39,783,799,749,949.52
5. Step 5: Solve for x
   x = 39,783,799,749,949.52/8,309,401.26
6. Step 6: Final answer
   x = 4,787,805.82