Finding the Fourth Proportional to 12,863,978.97, 17,752,325.90 and 7,063,136.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,863,978.97 : 17,752,325.90 = 7,063,136.43 : x
2. Step 2: Convert to fraction form
   12,863,978.97/17,752,325.90 = 7,063,136.43/x
3. Step 3: Cross multiply
   12,863,978.97x = 17,752,325.90 × 7,063,136.43
4. Step 4: Simplify right side
   12,863,978.97x = 125,387,099,781,522.52
5. Step 5: Solve for x
   x = 125,387,099,781,522.52/12,863,978.97
6. Step 6: Final answer
   x = 9,747,147.45