Finding the Fourth Proportional to 16,789.72, 25,167.57 and 10,554.14

Step by Step Solution

1. Step 1: Write the proportion equation
   16,789.72 : 25,167.57 = 10,554.14 : x
2. Step 2: Convert to fraction form
   16,789.72/25,167.57 = 10,554.14/x
3. Step 3: Cross multiply
   16,789.72x = 25,167.57 × 10,554.14
4. Step 4: Simplify right side
   16,789.72x = 265,622,057.24
5. Step 5: Solve for x
   x = 265,622,057.24/16,789.72
6. Step 6: Final answer
   x = 15,820.52