Finding the Fourth Proportional to 16,138.62, 22,271.85 and 9,064.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,138.62 : 22,271.85 = 9,064.89 : x
2. Step 2: Convert to fraction form
   16,138.62/22,271.85 = 9,064.89/x
3. Step 3: Cross multiply
   16,138.62x = 22,271.85 × 9,064.89
4. Step 4: Simplify right side
   16,138.62x = 201,891,870.35
5. Step 5: Solve for x
   x = 201,891,870.35/16,138.62
6. Step 6: Final answer
   x = 12,509.86