Finding the Fourth Proportional to 17,685.38, 24,409.29 and 10,136.77

Step by Step Solution

1. Step 1: Write the proportion equation
   17,685.38 : 24,409.29 = 10,136.77 : x
2. Step 2: Convert to fraction form
   17,685.38/24,409.29 = 10,136.77/x
3. Step 3: Cross multiply
   17,685.38x = 24,409.29 × 10,136.77
4. Step 4: Simplify right side
   17,685.38x = 247,431,216.37
5. Step 5: Solve for x
   x = 247,431,216.37/17,685.38
6. Step 6: Final answer
   x = 13,990.72