Finding the Fourth Proportional to 22,676.72, 34,036.62 and 13,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,676.72 : 34,036.62 = 13,928.72 : x
2. Step 2: Convert to fraction form
   22,676.72/34,036.62 = 13,928.72/x
3. Step 3: Cross multiply
   22,676.72x = 34,036.62 × 13,928.72
4. Step 4: Simplify right side
   22,676.72x = 474,086,549.73
5. Step 5: Solve for x
   x = 474,086,549.73/22,676.72
6. Step 6: Final answer
   x = 20,906.31