Finding the Fourth Proportional to 16,401.69, 22,628.48 and 9,683.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.69 : 22,628.48 = 9,683.96 : x
2. Step 2: Convert to fraction form
   16,401.69/22,628.48 = 9,683.96/x
3. Step 3: Cross multiply
   16,401.69x = 22,628.48 × 9,683.96
4. Step 4: Simplify right side
   16,401.69x = 219,133,133.62
5. Step 5: Solve for x
   x = 219,133,133.62/16,401.69
6. Step 6: Final answer
   x = 13,360.40