Finding the Fourth Proportional to 22,161.16, 30,582.50 and 12,089.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,161.16 : 30,582.50 = 12,089.57 : x
2. Step 2: Convert to fraction form
   22,161.16/30,582.50 = 12,089.57/x
3. Step 3: Cross multiply
   22,161.16x = 30,582.50 × 12,089.57
4. Step 4: Simplify right side
   22,161.16x = 369,729,061.16
5. Step 5: Solve for x
   x = 369,729,061.16/22,161.16
6. Step 6: Final answer
   x = 16,683.65