Finding the Fourth Proportional to 12,296.40, 18,447.52 and 3,531.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,296.40 : 18,447.52 = 3,531.12 : x
2. Step 2: Convert to fraction form
   12,296.40/18,447.52 = 3,531.12/x
3. Step 3: Cross multiply
   12,296.40x = 18,447.52 × 3,531.12
4. Step 4: Simplify right side
   12,296.40x = 65,140,406.82
5. Step 5: Solve for x
   x = 65,140,406.82/12,296.40
6. Step 6: Final answer
   x = 5,297.52