Finding the Fourth Proportional to 10,311.42, 15,445.38 and 8,552.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,311.42 : 15,445.38 = 8,552.10 : x
2. Step 2: Convert to fraction form
   10,311.42/15,445.38 = 8,552.10/x
3. Step 3: Cross multiply
   10,311.42x = 15,445.38 × 8,552.10
4. Step 4: Simplify right side
   10,311.42x = 132,090,434.30
5. Step 5: Solve for x
   x = 132,090,434.30/10,311.42
6. Step 6: Final answer
   x = 12,810.11