Finding the Fourth Proportional to 17,067.72, 23,553.50 and 9,899.02

Step by Step Solution

1. Step 1: Write the proportion equation
   17,067.72 : 23,553.50 = 9,899.02 : x
2. Step 2: Convert to fraction form
   17,067.72/23,553.50 = 9,899.02/x
3. Step 3: Cross multiply
   17,067.72x = 23,553.50 × 9,899.02
4. Step 4: Simplify right side
   17,067.72x = 233,156,470.71
5. Step 5: Solve for x
   x = 233,156,470.71/17,067.72
6. Step 6: Final answer
   x = 13,660.67