Finding the Fourth Proportional to 5,114.88, 7,061.76 and 3,542.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,114.88 : 7,061.76 = 3,542.40 : x
2. Step 2: Convert to fraction form
   5,114.88/7,061.76 = 3,542.40/x
3. Step 3: Cross multiply
   5,114.88x = 7,061.76 × 3,542.40
4. Step 4: Simplify right side
   5,114.88x = 25,015,578.62
5. Step 5: Solve for x
   x = 25,015,578.62/5,114.88
6. Step 6: Final answer
   x = 4,890.75