Finding the Fourth Proportional to 17,685.86, 24,406.22 and 9,728.01

Step by Step Solution

1. Step 1: Write the proportion equation
   17,685.86 : 24,406.22 = 9,728.01 : x
2. Step 2: Convert to fraction form
   17,685.86/24,406.22 = 9,728.01/x
3. Step 3: Cross multiply
   17,685.86x = 24,406.22 × 9,728.01
4. Step 4: Simplify right side
   17,685.86x = 237,423,903.58
5. Step 5: Solve for x
   x = 237,423,903.58/17,685.86
6. Step 6: Final answer
   x = 13,424.51