Finding the Fourth Proportional to 12,834.20, 17,710.82 and 7,168.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.20 : 17,710.82 = 7,168.78 : x
2. Step 2: Convert to fraction form
   12,834.20/17,710.82 = 7,168.78/x
3. Step 3: Cross multiply
   12,834.20x = 17,710.82 × 7,168.78
4. Step 4: Simplify right side
   12,834.20x = 126,964,945.84
5. Step 5: Solve for x
   x = 126,964,945.84/12,834.20
6. Step 6: Final answer
   x = 9,892.71