Finding the Fourth Proportional to 12,646.12, 17,450.94 and 7,057.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,646.12 : 17,450.94 = 7,057.48 : x
2. Step 2: Convert to fraction form
   12,646.12/17,450.94 = 7,057.48/x
3. Step 3: Cross multiply
   12,646.12x = 17,450.94 × 7,057.48
4. Step 4: Simplify right side
   12,646.12x = 123,159,660.03
5. Step 5: Solve for x
   x = 123,159,660.03/12,646.12
6. Step 6: Final answer
   x = 9,738.93