Finding the Fourth Proportional to 17,685.98, 24,406.67 and 9,728.81

Step by Step Solution

1. Step 1: Write the proportion equation
   17,685.98 : 24,406.67 = 9,728.81 : x
2. Step 2: Convert to fraction form
   17,685.98/24,406.67 = 9,728.81/x
3. Step 3: Cross multiply
   17,685.98x = 24,406.67 × 9,728.81
4. Step 4: Simplify right side
   17,685.98x = 237,447,806.52
5. Step 5: Solve for x
   x = 237,447,806.52/17,685.98
6. Step 6: Final answer
   x = 13,425.76