Finding the Fourth Proportional to 12,266.18, 18,396.20 and 3,501.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,266.18 : 18,396.20 = 3,501.18 : x
2. Step 2: Convert to fraction form
   12,266.18/18,396.20 = 3,501.18/x
3. Step 3: Cross multiply
   12,266.18x = 18,396.20 × 3,501.18
4. Step 4: Simplify right side
   12,266.18x = 64,408,407.52
5. Step 5: Solve for x
   x = 64,408,407.52/12,266.18
6. Step 6: Final answer
   x = 5,250.89