Finding the Fourth Proportional to 17,942.50, 24,734.98 and 12,620.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,942.50 : 24,734.98 = 12,620.80 : x
2. Step 2: Convert to fraction form
   17,942.50/24,734.98 = 12,620.80/x
3. Step 3: Cross multiply
   17,942.50x = 24,734.98 × 12,620.80
4. Step 4: Simplify right side
   17,942.50x = 312,175,205.30
5. Step 5: Solve for x
   x = 312,175,205.30/17,942.50
6. Step 6: Final answer
   x = 17,398.65