Finding the Fourth Proportional to 17,686.98, 24,407.28 and 9,728.37

Step by Step Solution

1. Step 1: Write the proportion equation
   17,686.98 : 24,407.28 = 9,728.37 : x
2. Step 2: Convert to fraction form
   17,686.98/24,407.28 = 9,728.37/x
3. Step 3: Cross multiply
   17,686.98x = 24,407.28 × 9,728.37
4. Step 4: Simplify right side
   17,686.98x = 237,443,050.53
5. Step 5: Solve for x
   x = 237,443,050.53/17,686.98
6. Step 6: Final answer
   x = 13,424.74