Finding the Fourth Proportional to 6,215.98, 8,578.82 and 3,563.33

Step by Step Solution

1. Step 1: Write the proportion equation
   6,215.98 : 8,578.82 = 3,563.33 : x
2. Step 2: Convert to fraction form
   6,215.98/8,578.82 = 3,563.33/x
3. Step 3: Cross multiply
   6,215.98x = 8,578.82 × 3,563.33
4. Step 4: Simplify right side
   6,215.98x = 30,569,164.86
5. Step 5: Solve for x
   x = 30,569,164.86/6,215.98
6. Step 6: Final answer
   x = 4,917.84