Finding the Fourth Proportional to 16,420,766.72, 22,660,601.12 and 9,177,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,420,766.72 : 22,660,601.12 = 9,177,422.72 : x
2. Step 2: Convert to fraction form
   16,420,766.72/22,660,601.12 = 9,177,422.72/x
3. Step 3: Cross multiply
   16,420,766.72x = 22,660,601.12 × 9,177,422.72
4. Step 4: Simplify right side
   16,420,766.72x = 207,965,915,567,545.47
5. Step 5: Solve for x
   x = 207,965,915,567,545.47/16,420,766.72
6. Step 6: Final answer
   x = 12,664,811.52