Finding the Fourth Proportional to 6,216.05, 8,577.90 and 3,561.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,216.05 : 8,577.90 = 3,561.62 : x
2. Step 2: Convert to fraction form
   6,216.05/8,577.90 = 3,561.62/x
3. Step 3: Cross multiply
   6,216.05x = 8,577.90 × 3,561.62
4. Step 4: Simplify right side
   6,216.05x = 30,551,177.31
5. Step 5: Solve for x
   x = 30,551,177.31/6,216.05
6. Step 6: Final answer
   x = 4,914.88