Finding the Fourth Proportional to 17,721.56, 24,455.73 and 9,763.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.56 : 24,455.73 = 9,763.78 : x
2. Step 2: Convert to fraction form
   17,721.56/24,455.73 = 9,763.78/x
3. Step 3: Cross multiply
   17,721.56x = 24,455.73 × 9,763.78
4. Step 4: Simplify right side
   17,721.56x = 238,780,367.46
5. Step 5: Solve for x
   x = 238,780,367.46/17,721.56
6. Step 6: Final answer
   x = 13,474.01