Finding the Fourth Proportional to 16,139.70, 22,274.87 and 9,066.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.70 : 22,274.87 = 9,066.12 : x
2. Step 2: Convert to fraction form
   16,139.70/22,274.87 = 9,066.12/x
3. Step 3: Cross multiply
   16,139.70x = 22,274.87 × 9,066.12
4. Step 4: Simplify right side
   16,139.70x = 201,946,644.40
5. Step 5: Solve for x
   x = 201,946,644.40/16,139.70
6. Step 6: Final answer
   x = 12,512.42