Finding the Fourth Proportional to 10,749.96, 16,128.72 and 3,356.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,749.96 : 16,128.72 = 3,356.28 : x
2. Step 2: Convert to fraction form
   10,749.96/16,128.72 = 3,356.28/x
3. Step 3: Cross multiply
   10,749.96x = 16,128.72 × 3,356.28
4. Step 4: Simplify right side
   10,749.96x = 54,132,500.36
5. Step 5: Solve for x
   x = 54,132,500.36/10,749.96
6. Step 6: Final answer
   x = 5,035.60