Finding the Fourth Proportional to 6,335.72, 8,747.39 and 5,671.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,335.72 : 8,747.39 = 5,671.42 : x
2. Step 2: Convert to fraction form
   6,335.72/8,747.39 = 5,671.42/x
3. Step 3: Cross multiply
   6,335.72x = 8,747.39 × 5,671.42
4. Step 4: Simplify right side
   6,335.72x = 49,610,114.90
5. Step 5: Solve for x
   x = 49,610,114.90/6,335.72
6. Step 6: Final answer
   x = 7,830.23