Finding the Fourth Proportional to 10,757.12, 16,134.72 and 2,965.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,757.12 : 16,134.72 = 2,965.28 : x
2. Step 2: Convert to fraction form
   10,757.12/16,134.72 = 2,965.28/x
3. Step 3: Cross multiply
   10,757.12x = 16,134.72 × 2,965.28
4. Step 4: Simplify right side
   10,757.12x = 47,843,962.52
5. Step 5: Solve for x
   x = 47,843,962.52/10,757.12
6. Step 6: Final answer
   x = 4,447.66