Finding the Fourth Proportional to 6,211.16, 8,571.46 and 3,558.51

Step by Step Solution

1. Step 1: Write the proportion equation
   6,211.16 : 8,571.46 = 3,558.51 : x
2. Step 2: Convert to fraction form
   6,211.16/8,571.46 = 3,558.51/x
3. Step 3: Cross multiply
   6,211.16x = 8,571.46 × 3,558.51
4. Step 4: Simplify right side
   6,211.16x = 30,501,613.59
5. Step 5: Solve for x
   x = 30,501,613.59/6,211.16
6. Step 6: Final answer
   x = 4,910.78