Finding the Fourth Proportional to 8,057.58, 12,074.68 and 5,722.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,057.58 : 12,074.68 = 5,722.16 : x
2. Step 2: Convert to fraction form
   8,057.58/12,074.68 = 5,722.16/x
3. Step 3: Cross multiply
   8,057.58x = 12,074.68 × 5,722.16
4. Step 4: Simplify right side
   8,057.58x = 69,093,197.69
5. Step 5: Solve for x
   x = 69,093,197.69/8,057.58
6. Step 6: Final answer
   x = 8,574.94