Finding the Fourth Proportional to 12,834.82, 17,710.88 and 7,168.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.82 : 17,710.88 = 7,168.78 : x
2. Step 2: Convert to fraction form
   12,834.82/17,710.88 = 7,168.78/x
3. Step 3: Cross multiply
   12,834.82x = 17,710.88 × 7,168.78
4. Step 4: Simplify right side
   12,834.82x = 126,965,402.33
5. Step 5: Solve for x
   x = 126,965,402.33/12,834.82
6. Step 6: Final answer
   x = 9,892.26