Finding the Fourth Proportional to 8,290.01, 12,431.37 and 4,393.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.01 : 12,431.37 = 4,393.52 : x
2. Step 2: Convert to fraction form
   8,290.01/12,431.37 = 4,393.52/x
3. Step 3: Cross multiply
   8,290.01x = 12,431.37 × 4,393.52
4. Step 4: Simplify right side
   8,290.01x = 54,617,472.72
5. Step 5: Solve for x
   x = 54,617,472.72/8,290.01
6. Step 6: Final answer
   x = 6,588.35