Finding the Fourth Proportional to 6,213.26, 8,574.50 and 3,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,213.26 : 8,574.50 = 3,561.50 : x
2. Step 2: Convert to fraction form
   6,213.26/8,574.50 = 3,561.50/x
3. Step 3: Cross multiply
   6,213.26x = 8,574.50 × 3,561.50
4. Step 4: Simplify right side
   6,213.26x = 30,538,081.75
5. Step 5: Solve for x
   x = 30,538,081.75/6,213.26
6. Step 6: Final answer
   x = 4,914.99