Finding the Fourth Proportional to 12,325.11, 18,488.61 and 3,560.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,325.11 : 18,488.61 = 3,560.10 : x
2. Step 2: Convert to fraction form
   12,325.11/18,488.61 = 3,560.10/x
3. Step 3: Cross multiply
   12,325.11x = 18,488.61 × 3,560.10
4. Step 4: Simplify right side
   12,325.11x = 65,821,300.46
5. Step 5: Solve for x
   x = 65,821,300.46/12,325.11
6. Step 6: Final answer
   x = 5,340.42