Finding the Fourth Proportional to 22,162, 30,581.16 and 12,731.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,162 : 30,581.16 = 12,731.92 : x
2. Step 2: Convert to fraction form
   22,162/30,581.16 = 12,731.92/x
3. Step 3: Cross multiply
   22,162x = 30,581.16 × 12,731.92
4. Step 4: Simplify right side
   22,162x = 389,356,882.63
5. Step 5: Solve for x
   x = 389,356,882.63/22,162
6. Step 6: Final answer
   x = 17,568.67