Finding the Fourth Proportional to 21,944.71, 30,282.82 and 12,513.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,944.71 : 30,282.82 = 12,513.27 : x
2. Step 2: Convert to fraction form
   21,944.71/30,282.82 = 12,513.27/x
3. Step 3: Cross multiply
   21,944.71x = 30,282.82 × 12,513.27
4. Step 4: Simplify right side
   21,944.71x = 378,937,103.02
5. Step 5: Solve for x
   x = 378,937,103.02/21,944.71
6. Step 6: Final answer
   x = 17,267.81