Finding the Fourth Proportional to 12,111.18, 18,170.23 and 3,793.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.18 : 18,170.23 = 3,793.58 : x
2. Step 2: Convert to fraction form
   12,111.18/18,170.23 = 3,793.58/x
3. Step 3: Cross multiply
   12,111.18x = 18,170.23 × 3,793.58
4. Step 4: Simplify right side
   12,111.18x = 68,930,120.79
5. Step 5: Solve for x
   x = 68,930,120.79/12,111.18
6. Step 6: Final answer
   x = 5,691.45