Finding the Fourth Proportional to 16,225.86, 22,399.20 and 9,510.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,225.86 : 22,399.20 = 9,510.60 : x
2. Step 2: Convert to fraction form
   16,225.86/22,399.20 = 9,510.60/x
3. Step 3: Cross multiply
   16,225.86x = 22,399.20 × 9,510.60
4. Step 4: Simplify right side
   16,225.86x = 213,029,831.52
5. Step 5: Solve for x
   x = 213,029,831.52/16,225.86
6. Step 6: Final answer
   x = 13,129.03