Finding the Fourth Proportional to 6,456.82, 9,672.54 and 4,258.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,456.82 : 9,672.54 = 4,258.84 : x
2. Step 2: Convert to fraction form
   6,456.82/9,672.54 = 4,258.84/x
3. Step 3: Cross multiply
   6,456.82x = 9,672.54 × 4,258.84
4. Step 4: Simplify right side
   6,456.82x = 41,193,800.25
5. Step 5: Solve for x
   x = 41,193,800.25/6,456.82
6. Step 6: Final answer
   x = 6,379.89