Finding the Fourth Proportional to 12,150.42, 18,226.62 and 3,385.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.42 : 18,226.62 = 3,385.41 : x
2. Step 2: Convert to fraction form
   12,150.42/18,226.62 = 3,385.41/x
3. Step 3: Cross multiply
   12,150.42x = 18,226.62 × 3,385.41
4. Step 4: Simplify right side
   12,150.42x = 61,704,581.61
5. Step 5: Solve for x
   x = 61,704,581.61/12,150.42
6. Step 6: Final answer
   x = 5,078.39