Finding the Fourth Proportional to 16,689, 23,030.84 and 10,401.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,689 : 23,030.84 = 10,401.38 : x
2. Step 2: Convert to fraction form
   16,689/23,030.84 = 10,401.38/x
3. Step 3: Cross multiply
   16,689x = 23,030.84 × 10,401.38
4. Step 4: Simplify right side
   16,689x = 239,552,429.41
5. Step 5: Solve for x
   x = 239,552,429.41/16,689
6. Step 6: Final answer
   x = 14,353.91