Finding the Fourth Proportional to 17,721.36, 24,455.55 and 9,764.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.36 : 24,455.55 = 9,764.31 : x
2. Step 2: Convert to fraction form
   17,721.36/24,455.55 = 9,764.31/x
3. Step 3: Cross multiply
   17,721.36x = 24,455.55 × 9,764.31
4. Step 4: Simplify right side
   17,721.36x = 238,791,571.42
5. Step 5: Solve for x
   x = 238,791,571.42/17,721.36
6. Step 6: Final answer
   x = 13,474.79