Finding the Fourth Proportional to 22,876.37, 31,570.79 and 12,805.43

Step by Step Solution

1. Step 1: Write the proportion equation
   22,876.37 : 31,570.79 = 12,805.43 : x
2. Step 2: Convert to fraction form
   22,876.37/31,570.79 = 12,805.43/x
3. Step 3: Cross multiply
   22,876.37x = 31,570.79 × 12,805.43
4. Step 4: Simplify right side
   22,876.37x = 404,277,556.29
5. Step 5: Solve for x
   x = 404,277,556.29/22,876.37
6. Step 6: Final answer
   x = 17,672.28