Finding the Fourth Proportional to 5,675.27, 7,831.56 and 3,156.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,675.27 : 7,831.56 = 3,156.89 : x
2. Step 2: Convert to fraction form
   5,675.27/7,831.56 = 3,156.89/x
3. Step 3: Cross multiply
   5,675.27x = 7,831.56 × 3,156.89
4. Step 4: Simplify right side
   5,675.27x = 24,723,393.03
5. Step 5: Solve for x
   x = 24,723,393.03/5,675.27
6. Step 6: Final answer
   x = 4,356.34