Finding the Fourth Proportional to 12,834.74, 17,711.16 and 7,456.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.74 : 17,711.16 = 7,456.34 : x
2. Step 2: Convert to fraction form
   12,834.74/17,711.16 = 7,456.34/x
3. Step 3: Cross multiply
   12,834.74x = 17,711.16 × 7,456.34
4. Step 4: Simplify right side
   12,834.74x = 132,060,430.75
5. Step 5: Solve for x
   x = 132,060,430.75/12,834.74
6. Step 6: Final answer
   x = 10,289.30