Finding the Fourth Proportional to 6,216.96, 8,578.50 and 3,858.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,216.96 : 8,578.50 = 3,858.24 : x
2. Step 2: Convert to fraction form
   6,216.96/8,578.50 = 3,858.24/x
3. Step 3: Cross multiply
   6,216.96x = 8,578.50 × 3,858.24
4. Step 4: Simplify right side
   6,216.96x = 33,097,911.84
5. Step 5: Solve for x
   x = 33,097,911.84/6,216.96
6. Step 6: Final answer
   x = 5,323.81