Finding the Fourth Proportional to 16,896.72, 23,315.40 and 9,824.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,896.72 : 23,315.40 = 9,824.72 : x
2. Step 2: Convert to fraction form
   16,896.72/23,315.40 = 9,824.72/x
3. Step 3: Cross multiply
   16,896.72x = 23,315.40 × 9,824.72
4. Step 4: Simplify right side
   16,896.72x = 229,067,276.69
5. Step 5: Solve for x
   x = 229,067,276.69/16,896.72
6. Step 6: Final answer
   x = 13,556.91