Finding the Fourth Proportional to 6,578.32, 9,870.18 and 5,340.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,578.32 : 9,870.18 = 5,340.82 : x
2. Step 2: Convert to fraction form
   6,578.32/9,870.18 = 5,340.82/x
3. Step 3: Cross multiply
   6,578.32x = 9,870.18 × 5,340.82
4. Step 4: Simplify right side
   6,578.32x = 52,714,854.75
5. Step 5: Solve for x
   x = 52,714,854.75/6,578.32
6. Step 6: Final answer
   x = 8,013.42