Finding the Fourth Proportional to 12,682.73, 17,491.42 and 7,645.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.73 : 17,491.42 = 7,645.84 : x
2. Step 2: Convert to fraction form
   12,682.73/17,491.42 = 7,645.84/x
3. Step 3: Cross multiply
   12,682.73x = 17,491.42 × 7,645.84
4. Step 4: Simplify right side
   12,682.73x = 133,736,598.69
5. Step 5: Solve for x
   x = 133,736,598.69/12,682.73
6. Step 6: Final answer
   x = 10,544.78