Finding the Fourth Proportional to 31,717.57, 43,770.16 and 17,570.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,717.57 : 43,770.16 = 17,570.42 : x
2. Step 2: Convert to fraction form
   31,717.57/43,770.16 = 17,570.42/x
3. Step 3: Cross multiply
   31,717.57x = 43,770.16 × 17,570.42
4. Step 4: Simplify right side
   31,717.57x = 769,059,787.96
5. Step 5: Solve for x
   x = 769,059,787.96/31,717.57
6. Step 6: Final answer
   x = 24,247.12