Finding the Fourth Proportional to 16,456.23, 22,720.23 and 10,172.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,456.23 : 22,720.23 = 10,172.25 : x
2. Step 2: Convert to fraction form
   16,456.23/22,720.23 = 10,172.25/x
3. Step 3: Cross multiply
   16,456.23x = 22,720.23 × 10,172.25
4. Step 4: Simplify right side
   16,456.23x = 231,115,859.62
5. Step 5: Solve for x
   x = 231,115,859.62/16,456.23
6. Step 6: Final answer
   x = 14,044.28