Finding the Fourth Proportional to 17,870.74, 24,662.43 and 9,912.49

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.74 : 24,662.43 = 9,912.49 : x
2. Step 2: Convert to fraction form
   17,870.74/24,662.43 = 9,912.49/x
3. Step 3: Cross multiply
   17,870.74x = 24,662.43 × 9,912.49
4. Step 4: Simplify right side
   17,870.74x = 244,466,090.75
5. Step 5: Solve for x
   x = 244,466,090.75/17,870.74
6. Step 6: Final answer
   x = 13,679.68