Finding the Fourth Proportional to 6,577.31, 9,076.43 and 3,890.27

Step by Step Solution

1. Step 1: Write the proportion equation
   6,577.31 : 9,076.43 = 3,890.27 : x
2. Step 2: Convert to fraction form
   6,577.31/9,076.43 = 3,890.27/x
3. Step 3: Cross multiply
   6,577.31x = 9,076.43 × 3,890.27
4. Step 4: Simplify right side
   6,577.31x = 35,309,766.58
5. Step 5: Solve for x
   x = 35,309,766.58/6,577.31
6. Step 6: Final answer
   x = 5,368.42