Finding the Fourth Proportional to 17,721.91, 24,456.30 and 9,764.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.91 : 24,456.30 = 9,764.12 : x
2. Step 2: Convert to fraction form
   17,721.91/24,456.30 = 9,764.12/x
3. Step 3: Cross multiply
   17,721.91x = 24,456.30 × 9,764.12
4. Step 4: Simplify right side
   17,721.91x = 238,794,247.96
5. Step 5: Solve for x
   x = 238,794,247.96/17,721.91
6. Step 6: Final answer
   x = 13,474.52