Finding the Fourth Proportional to 12,958.62, 17,839.67 and 12,363.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,958.62 : 17,839.67 = 12,363.50 : x
2. Step 2: Convert to fraction form
   12,958.62/17,839.67 = 12,363.50/x
3. Step 3: Cross multiply
   12,958.62x = 17,839.67 × 12,363.50
4. Step 4: Simplify right side
   12,958.62x = 220,560,609.03
5. Step 5: Solve for x
   x = 220,560,609.03/12,958.62
6. Step 6: Final answer
   x = 17,020.38