Finding the Fourth Proportional to 10,906.53, 16,356.33 and 3,509.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,906.53 : 16,356.33 = 3,509.27 : x
2. Step 2: Convert to fraction form
   10,906.53/16,356.33 = 3,509.27/x
3. Step 3: Cross multiply
   10,906.53x = 16,356.33 × 3,509.27
4. Step 4: Simplify right side
   10,906.53x = 57,398,778.18
5. Step 5: Solve for x
   x = 57,398,778.18/10,906.53
6. Step 6: Final answer
   x = 5,262.79