Finding the Fourth Proportional to 12,266.18, 18,399.30 and 3,501.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,266.18 : 18,399.30 = 3,501.10 : x
2. Step 2: Convert to fraction form
   12,266.18/18,399.30 = 3,501.10/x
3. Step 3: Cross multiply
   12,266.18x = 18,399.30 × 3,501.10
4. Step 4: Simplify right side
   12,266.18x = 64,417,679.73
5. Step 5: Solve for x
   x = 64,417,679.73/12,266.18
6. Step 6: Final answer
   x = 5,251.65