Finding the Fourth Proportional to 22,146.05, 30,561.14 and 12,713.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,146.05 : 30,561.14 = 12,713.87 : x
2. Step 2: Convert to fraction form
   22,146.05/30,561.14 = 12,713.87/x
3. Step 3: Cross multiply
   22,146.05x = 30,561.14 × 12,713.87
4. Step 4: Simplify right side
   22,146.05x = 388,550,144.64
5. Step 5: Solve for x
   x = 388,550,144.64/22,146.05
6. Step 6: Final answer
   x = 17,544.90