Finding the Fourth Proportional to 16,401.06, 22,635.36 and 9,328.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.06 : 22,635.36 = 9,328.59 : x
2. Step 2: Convert to fraction form
   16,401.06/22,635.36 = 9,328.59/x
3. Step 3: Cross multiply
   16,401.06x = 22,635.36 × 9,328.59
4. Step 4: Simplify right side
   16,401.06x = 211,155,992.94
5. Step 5: Solve for x
   x = 211,155,992.94/16,401.06
6. Step 6: Final answer
   x = 12,874.53