Finding the Fourth Proportional to 8,057.45, 12,074.49 and 5,722.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,057.45 : 12,074.49 = 5,722.03 : x
2. Step 2: Convert to fraction form
   8,057.45/12,074.49 = 5,722.03/x
3. Step 3: Cross multiply
   8,057.45x = 12,074.49 × 5,722.03
4. Step 4: Simplify right side
   8,057.45x = 69,090,594.01
5. Step 5: Solve for x
   x = 69,090,594.01/8,057.45
6. Step 6: Final answer
   x = 8,574.75