Finding the Fourth Proportional to 6,581.89, 9,078.76 and 3,927.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,581.89 : 9,078.76 = 3,927.25 : x
2. Step 2: Convert to fraction form
   6,581.89/9,078.76 = 3,927.25/x
3. Step 3: Cross multiply
   6,581.89x = 9,078.76 × 3,927.25
4. Step 4: Simplify right side
   6,581.89x = 35,654,560.21
5. Step 5: Solve for x
   x = 35,654,560.21/6,581.89
6. Step 6: Final answer
   x = 5,417.07