Finding the Fourth Proportional to 5,124.72, 7,691.27 and 2,660.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,124.72 : 7,691.27 = 2,660.25 : x
2. Step 2: Convert to fraction form
   5,124.72/7,691.27 = 2,660.25/x
3. Step 3: Cross multiply
   5,124.72x = 7,691.27 × 2,660.25
4. Step 4: Simplify right side
   5,124.72x = 20,460,673.30
5. Step 5: Solve for x
   x = 20,460,673.30/5,124.72
6. Step 6: Final answer
   x = 3,992.54