Finding the Fourth Proportional to 5,699.29, 8,542.55 and 3,728.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,699.29 : 8,542.55 = 3,728.71 : x
2. Step 2: Convert to fraction form
   5,699.29/8,542.55 = 3,728.71/x
3. Step 3: Cross multiply
   5,699.29x = 8,542.55 × 3,728.71
4. Step 4: Simplify right side
   5,699.29x = 31,852,691.61
5. Step 5: Solve for x
   x = 31,852,691.61/5,699.29
6. Step 6: Final answer
   x = 5,588.89