Finding the Fourth Proportional to 22,016.79, 33,023.39 and 8,689.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,016.79 : 33,023.39 = 8,689.25 : x
2. Step 2: Convert to fraction form
   22,016.79/33,023.39 = 8,689.25/x
3. Step 3: Cross multiply
   22,016.79x = 33,023.39 × 8,689.25
4. Step 4: Simplify right side
   22,016.79x = 286,948,491.56
5. Step 5: Solve for x
   x = 286,948,491.56/22,016.79
6. Step 6: Final answer
   x = 13,033.17