Finding the Fourth Proportional to 22,284.05, 30,743.42 and 12,724.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,284.05 : 30,743.42 = 12,724.47 : x
2. Step 2: Convert to fraction form
   22,284.05/30,743.42 = 12,724.47/x
3. Step 3: Cross multiply
   22,284.05x = 30,743.42 × 12,724.47
4. Step 4: Simplify right side
   22,284.05x = 391,193,661.87
5. Step 5: Solve for x
   x = 391,193,661.87/22,284.05
6. Step 6: Final answer
   x = 17,554.88