Finding the Fourth Proportional to 23,239.38, 32,069.46 and 12,628.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,239.38 : 32,069.46 = 12,628.78 : x
2. Step 2: Convert to fraction form
   23,239.38/32,069.46 = 12,628.78/x
3. Step 3: Cross multiply
   23,239.38x = 32,069.46 × 12,628.78
4. Step 4: Simplify right side
   23,239.38x = 404,998,155.06
5. Step 5: Solve for x
   x = 404,998,155.06/23,239.38
6. Step 6: Final answer
   x = 17,427.24