Finding the Fourth Proportional to 12,120.96, 18,182.52 and 3,355.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,120.96 : 18,182.52 = 3,355.92 : x
2. Step 2: Convert to fraction form
   12,120.96/18,182.52 = 3,355.92/x
3. Step 3: Cross multiply
   12,120.96x = 18,182.52 × 3,355.92
4. Step 4: Simplify right side
   12,120.96x = 61,019,082.52
5. Step 5: Solve for x
   x = 61,019,082.52/12,120.96
6. Step 6: Final answer
   x = 5,034.18