Finding the Fourth Proportional to 12,296.30, 18,443.72 and 3,531.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,296.30 : 18,443.72 = 3,531.08 : x
2. Step 2: Convert to fraction form
   12,296.30/18,443.72 = 3,531.08/x
3. Step 3: Cross multiply
   12,296.30x = 18,443.72 × 3,531.08
4. Step 4: Simplify right side
   12,296.30x = 65,126,140.94
5. Step 5: Solve for x
   x = 65,126,140.94/12,296.30
6. Step 6: Final answer
   x = 5,296.40