Finding the Fourth Proportional to 16,747.72, 25,121.56 and 13,052.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,747.72 : 25,121.56 = 13,052.71 : x
2. Step 2: Convert to fraction form
   16,747.72/25,121.56 = 13,052.71/x
3. Step 3: Cross multiply
   16,747.72x = 25,121.56 × 13,052.71
4. Step 4: Simplify right side
   16,747.72x = 327,904,437.43
5. Step 5: Solve for x
   x = 327,904,437.43/16,747.72
6. Step 6: Final answer
   x = 19,579.05