Finding the Fourth Proportional to 16,443.42, 22,690.17 and 9,729.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,443.42 : 22,690.17 = 9,729.33 : x
2. Step 2: Convert to fraction form
   16,443.42/22,690.17 = 9,729.33/x
3. Step 3: Cross multiply
   16,443.42x = 22,690.17 × 9,729.33
4. Step 4: Simplify right side
   16,443.42x = 220,760,151.69
5. Step 5: Solve for x
   x = 220,760,151.69/16,443.42
6. Step 6: Final answer
   x = 13,425.44