Finding the Fourth Proportional to 17,870.23, 24,659.29 and 9,912.43

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.23 : 24,659.29 = 9,912.43 : x
2. Step 2: Convert to fraction form
   17,870.23/24,659.29 = 9,912.43/x
3. Step 3: Cross multiply
   17,870.23x = 24,659.29 × 9,912.43
4. Step 4: Simplify right side
   17,870.23x = 244,433,485.97
5. Step 5: Solve for x
   x = 244,433,485.97/17,870.23
6. Step 6: Final answer
   x = 13,678.25