Finding the Fourth Proportional to 6,327.72, 8,728.81 and 3,808.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,327.72 : 8,728.81 = 3,808.31 : x
2. Step 2: Convert to fraction form
   6,327.72/8,728.81 = 3,808.31/x
3. Step 3: Cross multiply
   6,327.72x = 8,728.81 × 3,808.31
4. Step 4: Simplify right side
   6,327.72x = 33,241,961.25
5. Step 5: Solve for x
   x = 33,241,961.25/6,327.72
6. Step 6: Final answer
   x = 5,253.39