Finding the Fourth Proportional to 23,238.65, 32,069.52 and 12,628.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,238.65 : 32,069.52 = 12,628.28 : x
2. Step 2: Convert to fraction form
   23,238.65/32,069.52 = 12,628.28/x
3. Step 3: Cross multiply
   23,238.65x = 32,069.52 × 12,628.28
4. Step 4: Simplify right side
   23,238.65x = 404,982,717.68
5. Step 5: Solve for x
   x = 404,982,717.68/23,238.65
6. Step 6: Final answer
   x = 17,427.12