Finding the Fourth Proportional to 8,255.31, 12,361.82 and 4,553.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,255.31 : 12,361.82 = 4,553.42 : x
2. Step 2: Convert to fraction form
   8,255.31/12,361.82 = 4,553.42/x
3. Step 3: Cross multiply
   8,255.31x = 12,361.82 × 4,553.42
4. Step 4: Simplify right side
   8,255.31x = 56,288,543.38
5. Step 5: Solve for x
   x = 56,288,543.38/8,255.31
6. Step 6: Final answer
   x = 6,818.47