Finding the Fourth Proportional to 5,432.28, 7,494.72 and 3,442.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,432.28 : 7,494.72 = 3,442.56 : x
2. Step 2: Convert to fraction form
   5,432.28/7,494.72 = 3,442.56/x
3. Step 3: Cross multiply
   5,432.28x = 7,494.72 × 3,442.56
4. Step 4: Simplify right side
   5,432.28x = 25,801,023.28
5. Step 5: Solve for x
   x = 25,801,023.28/5,432.28
6. Step 6: Final answer
   x = 4,749.58