Finding the Fourth Proportional to 8,327.10, 12,490.50 and 3,395.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,327.10 : 12,490.50 = 3,395.57 : x
2. Step 2: Convert to fraction form
   8,327.10/12,490.50 = 3,395.57/x
3. Step 3: Cross multiply
   8,327.10x = 12,490.50 × 3,395.57
4. Step 4: Simplify right side
   8,327.10x = 42,412,387.62
5. Step 5: Solve for x
   x = 42,412,387.62/8,327.10
6. Step 6: Final answer
   x = 5,093.29