Finding the Fourth Proportional to 8,865.15, 12,225.16 and 7,524.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,865.15 : 12,225.16 = 7,524.43 : x
2. Step 2: Convert to fraction form
   8,865.15/12,225.16 = 7,524.43/x
3. Step 3: Cross multiply
   8,865.15x = 12,225.16 × 7,524.43
4. Step 4: Simplify right side
   8,865.15x = 91,987,339.50
5. Step 5: Solve for x
   x = 91,987,339.50/8,865.15
6. Step 6: Final answer
   x = 10,376.29