Finding the Fourth Proportional to 22,149.78, 30,566.54 and 12,078.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,149.78 : 30,566.54 = 12,078.24 : x
2. Step 2: Convert to fraction form
   22,149.78/30,566.54 = 12,078.24/x
3. Step 3: Cross multiply
   22,149.78x = 30,566.54 × 12,078.24
4. Step 4: Simplify right side
   22,149.78x = 369,189,945.70
5. Step 5: Solve for x
   x = 369,189,945.70/22,149.78
6. Step 6: Final answer
   x = 16,667.88