Finding the Fourth Proportional to 6,209.74, 8,568.86 and 3,521.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,209.74 : 8,568.86 = 3,521.08 : x
2. Step 2: Convert to fraction form
   6,209.74/8,568.86 = 3,521.08/x
3. Step 3: Cross multiply
   6,209.74x = 8,568.86 × 3,521.08
4. Step 4: Simplify right side
   6,209.74x = 30,171,641.57
5. Step 5: Solve for x
   x = 30,171,641.57/6,209.74
6. Step 6: Final answer
   x = 4,858.76