Finding the Fourth Proportional to 22,121.50, 30,527.67 and 12,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,121.50 : 30,527.67 = 12,185.50 : x
2. Step 2: Convert to fraction form
   22,121.50/30,527.67 = 12,185.50/x
3. Step 3: Cross multiply
   22,121.50x = 30,527.67 × 12,185.50
4. Step 4: Simplify right side
   22,121.50x = 371,994,922.79
5. Step 5: Solve for x
   x = 371,994,922.79/22,121.50
6. Step 6: Final answer
   x = 16,815.99