Finding the Fourth Proportional to 16,401.76, 22,636.34 and 9,329.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.76 : 22,636.34 = 9,329.24 : x
2. Step 2: Convert to fraction form
   16,401.76/22,636.34 = 9,329.24/x
3. Step 3: Cross multiply
   16,401.76x = 22,636.34 × 9,329.24
4. Step 4: Simplify right side
   16,401.76x = 211,179,848.58
5. Step 5: Solve for x
   x = 211,179,848.58/16,401.76
6. Step 6: Final answer
   x = 12,875.44