Finding the Fourth Proportional to 17,870.19, 24,659.10 and 9,912.24

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.19 : 24,659.10 = 9,912.24 : x
2. Step 2: Convert to fraction form
   17,870.19/24,659.10 = 9,912.24/x
3. Step 3: Cross multiply
   17,870.19x = 24,659.10 × 9,912.24
4. Step 4: Simplify right side
   17,870.19x = 244,426,917.38
5. Step 5: Solve for x
   x = 244,426,917.38/17,870.19
6. Step 6: Final answer
   x = 13,677.91