Finding the Fourth Proportional to 16,104, 22,221.72 and 9,029.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,104 : 22,221.72 = 9,029.40 : x
2. Step 2: Convert to fraction form
   16,104/22,221.72 = 9,029.40/x
3. Step 3: Cross multiply
   16,104x = 22,221.72 × 9,029.40
4. Step 4: Simplify right side
   16,104x = 200,648,798.57
5. Step 5: Solve for x
   x = 200,648,798.57/16,104
6. Step 6: Final answer
   x = 12,459.56