Finding the Fourth Proportional to 12,682.16, 17,501.46 and 7,645.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.16 : 17,501.46 = 7,645.37 : x
2. Step 2: Convert to fraction form
   12,682.16/17,501.46 = 7,645.37/x
3. Step 3: Cross multiply
   12,682.16x = 17,501.46 × 7,645.37
4. Step 4: Simplify right side
   12,682.16x = 133,805,049.73
5. Step 5: Solve for x
   x = 133,805,049.73/12,682.16
6. Step 6: Final answer
   x = 10,550.66