Finding the Fourth Proportional to 15,754.21, 21,733.73 and 10,648.09

Step by Step Solution

1. Step 1: Write the proportion equation
   15,754.21 : 21,733.73 = 10,648.09 : x
2. Step 2: Convert to fraction form
   15,754.21/21,733.73 = 10,648.09/x
3. Step 3: Cross multiply
   15,754.21x = 21,733.73 × 10,648.09
4. Step 4: Simplify right side
   15,754.21x = 231,422,786.83
5. Step 5: Solve for x
   x = 231,422,786.83/15,754.21
6. Step 6: Final answer
   x = 14,689.58