Finding the Fourth Proportional to 17,721.72, 24,448.14 and 11,754.36

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.72 : 24,448.14 = 11,754.36 : x
2. Step 2: Convert to fraction form
   17,721.72/24,448.14 = 11,754.36/x
3. Step 3: Cross multiply
   17,721.72x = 24,448.14 × 11,754.36
4. Step 4: Simplify right side
   17,721.72x = 287,372,238.89
5. Step 5: Solve for x
   x = 287,372,238.89/17,721.72
6. Step 6: Final answer
   x = 16,215.82