Finding the Fourth Proportional to 17,942.43, 24,734.90 and 12,620.73

Step by Step Solution

1. Step 1: Write the proportion equation
   17,942.43 : 24,734.90 = 12,620.73 : x
2. Step 2: Convert to fraction form
   17,942.43/24,734.90 = 12,620.73/x
3. Step 3: Cross multiply
   17,942.43x = 24,734.90 × 12,620.73
4. Step 4: Simplify right side
   17,942.43x = 312,172,563.25
5. Step 5: Solve for x
   x = 312,172,563.25/17,942.43
6. Step 6: Final answer
   x = 17,398.56