Finding the Fourth Proportional to 12,103.52, 18,155.76 and 3,789.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.52 : 18,155.76 = 3,789.12 : x
2. Step 2: Convert to fraction form
   12,103.52/18,155.76 = 3,789.12/x
3. Step 3: Cross multiply
   12,103.52x = 18,155.76 × 3,789.12
4. Step 4: Simplify right side
   12,103.52x = 68,794,353.33
5. Step 5: Solve for x
   x = 68,794,353.33/12,103.52
6. Step 6: Final answer
   x = 5,683.83