Finding the Fourth Proportional to 12,834.61, 17,711.57 and 7,169.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.61 : 17,711.57 = 7,169.46 : x
2. Step 2: Convert to fraction form
   12,834.61/17,711.57 = 7,169.46/x
3. Step 3: Cross multiply
   12,834.61x = 17,711.57 × 7,169.46
4. Step 4: Simplify right side
   12,834.61x = 126,982,392.65
5. Step 5: Solve for x
   x = 126,982,392.65/12,834.61
6. Step 6: Final answer
   x = 9,893.75