Finding the Fourth Proportional to 17,685.16, 24,405.91 and 9,727.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,685.16 : 24,405.91 = 9,727.79 : x
2. Step 2: Convert to fraction form
   17,685.16/24,405.91 = 9,727.79/x
3. Step 3: Cross multiply
   17,685.16x = 24,405.91 × 9,727.79
4. Step 4: Simplify right side
   17,685.16x = 237,415,420.89
5. Step 5: Solve for x
   x = 237,415,420.89/17,685.16
6. Step 6: Final answer
   x = 13,424.56