Finding the Fourth Proportional to 22,367.93, 30,868.56 and 12,809.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,367.93 : 30,868.56 = 12,809.30 : x
2. Step 2: Convert to fraction form
   22,367.93/30,868.56 = 12,809.30/x
3. Step 3: Cross multiply
   22,367.93x = 30,868.56 × 12,809.30
4. Step 4: Simplify right side
   22,367.93x = 395,404,491.27
5. Step 5: Solve for x
   x = 395,404,491.27/22,367.93
6. Step 6: Final answer
   x = 17,677.30