Finding the Fourth Proportional to 16,682.67, 23,019.81 and 9,966.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,682.67 : 23,019.81 = 9,966.88 : x
2. Step 2: Convert to fraction form
   16,682.67/23,019.81 = 9,966.88/x
3. Step 3: Cross multiply
   16,682.67x = 23,019.81 × 9,966.88
4. Step 4: Simplify right side
   16,682.67x = 229,435,683.89
5. Step 5: Solve for x
   x = 229,435,683.89/16,682.67
6. Step 6: Final answer
   x = 13,752.94