Finding the Fourth Proportional to 22,121.38, 30,527.50 and 12,185.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,121.38 : 30,527.50 = 12,185.38 : x
2. Step 2: Convert to fraction form
   22,121.38/30,527.50 = 12,185.38/x
3. Step 3: Cross multiply
   22,121.38x = 30,527.50 × 12,185.38
4. Step 4: Simplify right side
   22,121.38x = 371,989,035.31
5. Step 5: Solve for x
   x = 371,989,035.31/22,121.38
6. Step 6: Final answer
   x = 16,815.82