Finding the Fourth Proportional to 23,348.38, 32,220.72 and 12,738.02

Step by Step Solution

1. Step 1: Write the proportion equation
   23,348.38 : 32,220.72 = 12,738.02 : x
2. Step 2: Convert to fraction form
   23,348.38/32,220.72 = 12,738.02/x
3. Step 3: Cross multiply
   23,348.38x = 32,220.72 × 12,738.02
4. Step 4: Simplify right side
   23,348.38x = 410,428,175.77
5. Step 5: Solve for x
   x = 410,428,175.77/23,348.38
6. Step 6: Final answer
   x = 17,578.44