Finding the Fourth Proportional to 6,498.40, 8,961.42 and 5,958.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,498.40 : 8,961.42 = 5,958.76 : x
2. Step 2: Convert to fraction form
   6,498.40/8,961.42 = 5,958.76/x
3. Step 3: Cross multiply
   6,498.40x = 8,961.42 × 5,958.76
4. Step 4: Simplify right side
   6,498.40x = 53,398,951.04
5. Step 5: Solve for x
   x = 53,398,951.04/6,498.40
6. Step 6: Final answer
   x = 8,217.25