Finding the Fourth Proportional to 5,773.20, 8,065.20 and 5,773.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,773.20 : 8,065.20 = 5,773.20 : x
2. Step 2: Convert to fraction form
   5,773.20/8,065.20 = 5,773.20/x
3. Step 3: Cross multiply
   5,773.20x = 8,065.20 × 5,773.20
4. Step 4: Simplify right side
   5,773.20x = 46,562,012.64
5. Step 5: Solve for x
   x = 46,562,012.64/5,773.20
6. Step 6: Final answer
   x = 8,065.20