Finding the Fourth Proportional to 16,959.38, 23,403.94 and 9,887.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,959.38 : 23,403.94 = 9,887.16 : x
2. Step 2: Convert to fraction form
   16,959.38/23,403.94 = 9,887.16/x
3. Step 3: Cross multiply
   16,959.38x = 23,403.94 × 9,887.16
4. Step 4: Simplify right side
   16,959.38x = 231,398,562.46
5. Step 5: Solve for x
   x = 231,398,562.46/16,959.38
6. Step 6: Final answer
   x = 13,644.29