Finding the Fourth Proportional to 16,280.88, 22,443.12 and 12,737.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,280.88 : 22,443.12 = 12,737.94 : x
2. Step 2: Convert to fraction form
   16,280.88/22,443.12 = 12,737.94/x
3. Step 3: Cross multiply
   16,280.88x = 22,443.12 × 12,737.94
4. Step 4: Simplify right side
   16,280.88x = 285,879,115.97
5. Step 5: Solve for x
   x = 285,879,115.97/16,280.88
6. Step 6: Final answer
   x = 17,559.19