Finding the Fourth Proportional to 31,072.50, 42,880.35 and 17,644.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.50 : 42,880.35 = 17,644.04 : x
2. Step 2: Convert to fraction form
   31,072.50/42,880.35 = 17,644.04/x
3. Step 3: Cross multiply
   31,072.50x = 42,880.35 × 17,644.04
4. Step 4: Simplify right side
   31,072.50x = 756,582,609.04
5. Step 5: Solve for x
   x = 756,582,609.04/31,072.50
6. Step 6: Final answer
   x = 24,348.94