Finding the Fourth Proportional to 22,326.72, 30,809.76 and 12,894.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,326.72 : 30,809.76 = 12,894.72 : x
2. Step 2: Convert to fraction form
   22,326.72/30,809.76 = 12,894.72/x
3. Step 3: Cross multiply
   22,326.72x = 30,809.76 × 12,894.72
4. Step 4: Simplify right side
   22,326.72x = 397,283,228.47
5. Step 5: Solve for x
   x = 397,283,228.47/22,326.72
6. Step 6: Final answer
   x = 17,794.07