Finding the Fourth Proportional to 16,997.28, 23,456.09 and 9,443.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,997.28 : 23,456.09 = 9,443.63 : x
2. Step 2: Convert to fraction form
   16,997.28/23,456.09 = 9,443.63/x
3. Step 3: Cross multiply
   16,997.28x = 23,456.09 × 9,443.63
4. Step 4: Simplify right side
   16,997.28x = 221,510,517.93
5. Step 5: Solve for x
   x = 221,510,517.93/16,997.28
6. Step 6: Final answer
   x = 13,032.12