Finding the Fourth Proportional to 16,686.29, 23,019.75 and 9,968.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,686.29 : 23,019.75 = 9,968.56 : x
2. Step 2: Convert to fraction form
   16,686.29/23,019.75 = 9,968.56/x
3. Step 3: Cross multiply
   16,686.29x = 23,019.75 × 9,968.56
4. Step 4: Simplify right side
   16,686.29x = 229,473,759.06
5. Step 5: Solve for x
   x = 229,473,759.06/16,686.29
6. Step 6: Final answer
   x = 13,752.23