Finding the Fourth Proportional to 10,814.31, 16,197.98 and 5,255.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,814.31 : 16,197.98 = 5,255.96 : x
2. Step 2: Convert to fraction form
   10,814.31/16,197.98 = 5,255.96/x
3. Step 3: Cross multiply
   10,814.31x = 16,197.98 × 5,255.96
4. Step 4: Simplify right side
   10,814.31x = 85,135,827.69
5. Step 5: Solve for x
   x = 85,135,827.69/10,814.31
6. Step 6: Final answer
   x = 7,872.52