Finding the Fourth Proportional to 6,485.76, 8,944.56 and 5,086.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,485.76 : 8,944.56 = 5,086.08 : x
2. Step 2: Convert to fraction form
   6,485.76/8,944.56 = 5,086.08/x
3. Step 3: Cross multiply
   6,485.76x = 8,944.56 × 5,086.08
4. Step 4: Simplify right side
   6,485.76x = 45,492,747.72
5. Step 5: Solve for x
   x = 45,492,747.72/6,485.76
6. Step 6: Final answer
   x = 7,014.25