Finding the Fourth Proportional to 22,321.57, 30,804.15 and 12,250.95

Step by Step Solution

1. Step 1: Write the proportion equation
   22,321.57 : 30,804.15 = 12,250.95 : x
2. Step 2: Convert to fraction form
   22,321.57/30,804.15 = 12,250.95/x
3. Step 3: Cross multiply
   22,321.57x = 30,804.15 × 12,250.95
4. Step 4: Simplify right side
   22,321.57x = 377,379,993.80
5. Step 5: Solve for x
   x = 377,379,993.80/22,321.57
6. Step 6: Final answer
   x = 16,906.52