Finding the Fourth Proportional to 9,013.62, 12,447.33 and 8,522.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,013.62 : 12,447.33 = 8,522.76 : x
2. Step 2: Convert to fraction form
   9,013.62/12,447.33 = 8,522.76/x
3. Step 3: Cross multiply
   9,013.62x = 12,447.33 × 8,522.76
4. Step 4: Simplify right side
   9,013.62x = 106,085,606.23
5. Step 5: Solve for x
   x = 106,085,606.23/9,013.62
6. Step 6: Final answer
   x = 11,769.48