Finding the Fourth Proportional to 12,770.34, 17,615.27 and 8,986.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770.34 : 17,615.27 = 8,986.83 : x
2. Step 2: Convert to fraction form
   12,770.34/17,615.27 = 8,986.83/x
3. Step 3: Cross multiply
   12,770.34x = 17,615.27 × 8,986.83
4. Step 4: Simplify right side
   12,770.34x = 158,305,391.96
5. Step 5: Solve for x
   x = 158,305,391.96/12,770.34
6. Step 6: Final answer
   x = 12,396.33