Finding the Fourth Proportional to 6,341.28, 8,747.82 and 3,687.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,341.28 : 8,747.82 = 3,687.72 : x
2. Step 2: Convert to fraction form
   6,341.28/8,747.82 = 3,687.72/x
3. Step 3: Cross multiply
   6,341.28x = 8,747.82 × 3,687.72
4. Step 4: Simplify right side
   6,341.28x = 32,259,510.77
5. Step 5: Solve for x
   x = 32,259,510.77/6,341.28
6. Step 6: Final answer
   x = 5,087.22