Finding the Fourth Proportional to 10,665.96, 16,003.20 and 5,734.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.96 : 16,003.20 = 5,734.28 : x
2. Step 2: Convert to fraction form
   10,665.96/16,003.20 = 5,734.28/x
3. Step 3: Cross multiply
   10,665.96x = 16,003.20 × 5,734.28
4. Step 4: Simplify right side
   10,665.96x = 91,766,749.68
5. Step 5: Solve for x
   x = 91,766,749.68/10,665.96
6. Step 6: Final answer
   x = 8,603.70