Finding the Fourth Proportional to 12,265.57, 18,394.10 and 3,498.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,265.57 : 18,394.10 = 3,498.13 : x
2. Step 2: Convert to fraction form
   12,265.57/18,394.10 = 3,498.13/x
3. Step 3: Cross multiply
   12,265.57x = 18,394.10 × 3,498.13
4. Step 4: Simplify right side
   12,265.57x = 64,344,889.56
5. Step 5: Solve for x
   x = 64,344,889.56/12,265.57
6. Step 6: Final answer
   x = 5,245.98