Finding the Fourth Proportional to 22,666.72, 33,979.23 and 12,143.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,666.72 : 33,979.23 = 12,143.98 : x
2. Step 2: Convert to fraction form
   22,666.72/33,979.23 = 12,143.98/x
3. Step 3: Cross multiply
   22,666.72x = 33,979.23 × 12,143.98
4. Step 4: Simplify right side
   22,666.72x = 412,643,089.54
5. Step 5: Solve for x
   x = 412,643,089.54/22,666.72
6. Step 6: Final answer
   x = 18,204.80