Finding the Fourth Proportional to 6,219.71, 8,583.33 and 3,531.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,219.71 : 8,583.33 = 3,531.10 : x
2. Step 2: Convert to fraction form
   6,219.71/8,583.33 = 3,531.10/x
3. Step 3: Cross multiply
   6,219.71x = 8,583.33 × 3,531.10
4. Step 4: Simplify right side
   6,219.71x = 30,308,596.56
5. Step 5: Solve for x
   x = 30,308,596.56/6,219.71
6. Step 6: Final answer
   x = 4,872.99