Finding the Fourth Proportional to 8,665.29, 11,951.69 and 5,522.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665.29 : 11,951.69 = 5,522.49 : x
2. Step 2: Convert to fraction form
   8,665.29/11,951.69 = 5,522.49/x
3. Step 3: Cross multiply
   8,665.29x = 11,951.69 × 5,522.49
4. Step 4: Simplify right side
   8,665.29x = 66,003,060.90
5. Step 5: Solve for x
   x = 66,003,060.90/8,665.29
6. Step 6: Final answer
   x = 7,616.95