Finding the Fourth Proportional to 3,944.38, 5,432.17 and 3,858.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944.38 : 5,432.17 = 3,858.27 : x
2. Step 2: Convert to fraction form
   3,944.38/5,432.17 = 3,858.27/x
3. Step 3: Cross multiply
   3,944.38x = 5,432.17 × 3,858.27
4. Step 4: Simplify right side
   3,944.38x = 20,958,778.55
5. Step 5: Solve for x
   x = 20,958,778.55/3,944.38
6. Step 6: Final answer
   x = 5,313.58