Finding the Fourth Proportional to 14,404, 21,608.16 and 5,172.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,404 : 21,608.16 = 5,172.16 : x
2. Step 2: Convert to fraction form
   14,404/21,608.16 = 5,172.16/x
3. Step 3: Cross multiply
   14,404x = 21,608.16 × 5,172.16
4. Step 4: Simplify right side
   14,404x = 111,760,860.83
5. Step 5: Solve for x
   x = 111,760,860.83/14,404
6. Step 6: Final answer
   x = 7,759.02