Finding the Fourth Proportional to 5,712.72, 7,929.78 and 5,574.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,712.72 : 7,929.78 = 5,574.48 : x
2. Step 2: Convert to fraction form
   5,712.72/7,929.78 = 5,574.48/x
3. Step 3: Cross multiply
   5,712.72x = 7,929.78 × 5,574.48
4. Step 4: Simplify right side
   5,712.72x = 44,204,400.01
5. Step 5: Solve for x
   x = 44,204,400.01/5,712.72
6. Step 6: Final answer
   x = 7,737.89