Finding the Fourth Proportional to 6,863.55, 10,309.59 and 5,548.79

Step by Step Solution

1. Step 1: Write the proportion equation
   6,863.55 : 10,309.59 = 5,548.79 : x
2. Step 2: Convert to fraction form
   6,863.55/10,309.59 = 5,548.79/x
3. Step 3: Cross multiply
   6,863.55x = 10,309.59 × 5,548.79
4. Step 4: Simplify right side
   6,863.55x = 57,205,749.90
5. Step 5: Solve for x
   x = 57,205,749.90/6,863.55
6. Step 6: Final answer
   x = 8,334.72