Finding the Fourth Proportional to 22,078.73, 30,468.23 and 12,142.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,078.73 : 30,468.23 = 12,142.73 : x
2. Step 2: Convert to fraction form
   22,078.73/30,468.23 = 12,142.73/x
3. Step 3: Cross multiply
   22,078.73x = 30,468.23 × 12,142.73
4. Step 4: Simplify right side
   22,078.73x = 369,967,429.75
5. Step 5: Solve for x
   x = 369,967,429.75/22,078.73
6. Step 6: Final answer
   x = 16,756.74