Finding the Fourth Proportional to 6,213.54, 8,575.04 and 3,561.39

Step by Step Solution

1. Step 1: Write the proportion equation
   6,213.54 : 8,575.04 = 3,561.39 : x
2. Step 2: Convert to fraction form
   6,213.54/8,575.04 = 3,561.39/x
3. Step 3: Cross multiply
   6,213.54x = 8,575.04 × 3,561.39
4. Step 4: Simplify right side
   6,213.54x = 30,539,061.71
5. Step 5: Solve for x
   x = 30,539,061.71/6,213.54
6. Step 6: Final answer
   x = 4,914.92