Finding the Fourth Proportional to 12,834.81, 17,710.23 and 7,168.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.81 : 17,710.23 = 7,168.77 : x
2. Step 2: Convert to fraction form
   12,834.81/17,710.23 = 7,168.77/x
3. Step 3: Cross multiply
   12,834.81x = 17,710.23 × 7,168.77
4. Step 4: Simplify right side
   12,834.81x = 126,960,565.52
5. Step 5: Solve for x
   x = 126,960,565.52/12,834.81
6. Step 6: Final answer
   x = 9,891.89