Finding the Fourth Proportional to 12,324.33, 18,488.31 and 3,559.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,324.33 : 18,488.31 = 3,559.32 : x
2. Step 2: Convert to fraction form
   12,324.33/18,488.31 = 3,559.32/x
3. Step 3: Cross multiply
   12,324.33x = 18,488.31 × 3,559.32
4. Step 4: Simplify right side
   12,324.33x = 65,805,811.55
5. Step 5: Solve for x
   x = 65,805,811.55/12,324.33
6. Step 6: Final answer
   x = 5,339.50