Finding the Fourth Proportional to 5,402.16, 7,456.05 and 3,411.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,402.16 : 7,456.05 = 3,411.72 : x
2. Step 2: Convert to fraction form
   5,402.16/7,456.05 = 3,411.72/x
3. Step 3: Cross multiply
   5,402.16x = 7,456.05 × 3,411.72
4. Step 4: Simplify right side
   5,402.16x = 25,437,954.91
5. Step 5: Solve for x
   x = 25,437,954.91/5,402.16
6. Step 6: Final answer
   x = 4,708.85