Finding the Fourth Proportional to 10,816, 16,224 and 2,608

Step by Step Solution

1. Step 1: Write the proportion equation
   10,816 : 16,224 = 2,608 : x
2. Step 2: Convert to fraction form
   10,816/16,224 = 2,608/x
3. Step 3: Cross multiply
   10,816x = 16,224 × 2,608
4. Step 4: Simplify right side
   10,816x = 42,312,192
5. Step 5: Solve for x
   x = 42,312,192/10,816
6. Step 6: Final answer
   x = 3,912