Finding the Fourth Proportional to 9,782,963.28, 14,608,566.72 and 7,989,404.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,782,963.28 : 14,608,566.72 = 7,989,404.76 : x
2. Step 2: Convert to fraction form
   9,782,963.28/14,608,566.72 = 7,989,404.76/x
3. Step 3: Cross multiply
   9,782,963.28x = 14,608,566.72 × 7,989,404.76
4. Step 4: Simplify right side
   9,782,963.28x = 116,713,752,489,545.59
5. Step 5: Solve for x
   x = 116,713,752,489,545.59/9,782,963.28
6. Step 6: Final answer
   x = 11,930,306.71