Finding the Fourth Proportional to 16,868.79, 25,308.58 and 8,104.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,868.79 : 25,308.58 = 8,104.32 : x
2. Step 2: Convert to fraction form
   16,868.79/25,308.58 = 8,104.32/x
3. Step 3: Cross multiply
   16,868.79x = 25,308.58 × 8,104.32
4. Step 4: Simplify right side
   16,868.79x = 205,108,831.07
5. Step 5: Solve for x
   x = 205,108,831.07/16,868.79
6. Step 6: Final answer
   x = 12,159.07