Finding the Fourth Proportional to 22,160.96, 30,581.37 and 12,089.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,160.96 : 30,581.37 = 12,089.12 : x
2. Step 2: Convert to fraction form
   22,160.96/30,581.37 = 12,089.12/x
3. Step 3: Cross multiply
   22,160.96x = 30,581.37 × 12,089.12
4. Step 4: Simplify right side
   22,160.96x = 369,701,851.69
5. Step 5: Solve for x
   x = 369,701,851.69/22,160.96
6. Step 6: Final answer
   x = 16,682.57