Finding the Fourth Proportional to 17,870.57, 24,662.50 and 10,318.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.57 : 24,662.50 = 10,318.28 : x
2. Step 2: Convert to fraction form
   17,870.57/24,662.50 = 10,318.28/x
3. Step 3: Cross multiply
   17,870.57x = 24,662.50 × 10,318.28
4. Step 4: Simplify right side
   17,870.57x = 254,474,580.50
5. Step 5: Solve for x
   x = 254,474,580.50/17,870.57
6. Step 6: Final answer
   x = 14,239.87