Finding the Fourth Proportional to 22,144.69, 30,560.89 and 12,713.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,144.69 : 30,560.89 = 12,713.86 : x
2. Step 2: Convert to fraction form
   22,144.69/30,560.89 = 12,713.86/x
3. Step 3: Cross multiply
   22,144.69x = 30,560.89 × 12,713.86
4. Step 4: Simplify right side
   22,144.69x = 388,546,813.37
5. Step 5: Solve for x
   x = 388,546,813.37/22,144.69
6. Step 6: Final answer
   x = 17,545.82