Finding the Fourth Proportional to 8,309,400.76, 12,465,717.10 and 3,191,456.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309,400.76 : 12,465,717.10 = 3,191,456.28 : x
2. Step 2: Convert to fraction form
   8,309,400.76/12,465,717.10 = 3,191,456.28/x
3. Step 3: Cross multiply
   8,309,400.76x = 12,465,717.10 × 3,191,456.28
4. Step 4: Simplify right side
   8,309,400.76x = 39,783,791,123,498.38
5. Step 5: Solve for x
   x = 39,783,791,123,498.38/8,309,400.76
6. Step 6: Final answer
   x = 4,787,805.07