Finding the Fourth Proportional to 12,103.06, 18,155.52 and 3,337.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.06 : 18,155.52 = 3,337.90 : x
2. Step 2: Convert to fraction form
   12,103.06/18,155.52 = 3,337.90/x
3. Step 3: Cross multiply
   12,103.06x = 18,155.52 × 3,337.90
4. Step 4: Simplify right side
   12,103.06x = 60,601,310.21
5. Step 5: Solve for x
   x = 60,601,310.21/12,103.06
6. Step 6: Final answer
   x = 5,007.11