Finding the Fourth Proportional to 7,728.89, 10,665.72 and 4,371.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,728.89 : 10,665.72 = 4,371.59 : x
2. Step 2: Convert to fraction form
   7,728.89/10,665.72 = 4,371.59/x
3. Step 3: Cross multiply
   7,728.89x = 10,665.72 × 4,371.59
4. Step 4: Simplify right side
   7,728.89x = 46,626,101.57
5. Step 5: Solve for x
   x = 46,626,101.57/7,728.89
6. Step 6: Final answer
   x = 6,032.71