Finding the Fourth Proportional to 10,105.38, 15,158.11 and 3,442.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.38 : 15,158.11 = 3,442.55 : x
2. Step 2: Convert to fraction form
   10,105.38/15,158.11 = 3,442.55/x
3. Step 3: Cross multiply
   10,105.38x = 15,158.11 × 3,442.55
4. Step 4: Simplify right side
   10,105.38x = 52,182,568.58
5. Step 5: Solve for x
   x = 52,182,568.58/10,105.38
6. Step 6: Final answer
   x = 5,163.84