Finding the Fourth Proportional to 16,223.50, 22,390.86 and 9,939.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,223.50 : 22,390.86 = 9,939.52 : x
2. Step 2: Convert to fraction form
   16,223.50/22,390.86 = 9,939.52/x
3. Step 3: Cross multiply
   16,223.50x = 22,390.86 × 9,939.52
4. Step 4: Simplify right side
   16,223.50x = 222,554,400.79
5. Step 5: Solve for x
   x = 222,554,400.79/16,223.50
6. Step 6: Final answer
   x = 13,718.03