Finding the Fourth Proportional to 3,542.25, 5,321.21 and 2,311.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,542.25 : 5,321.21 = 2,311.59 : x
2. Step 2: Convert to fraction form
   3,542.25/5,321.21 = 2,311.59/x
3. Step 3: Cross multiply
   3,542.25x = 5,321.21 × 2,311.59
4. Step 4: Simplify right side
   3,542.25x = 12,300,444.27
5. Step 5: Solve for x
   x = 12,300,444.27/3,542.25
6. Step 6: Final answer
   x = 3,472.49