Finding the Fourth Proportional to 12,738.54, 17,578.04 and 7,432.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,738.54 : 17,578.04 = 7,432.33 : x
2. Step 2: Convert to fraction form
   12,738.54/17,578.04 = 7,432.33/x
3. Step 3: Cross multiply
   12,738.54x = 17,578.04 × 7,432.33
4. Step 4: Simplify right side
   12,738.54x = 130,645,794.03
5. Step 5: Solve for x
   x = 130,645,794.03/12,738.54
6. Step 6: Final answer
   x = 10,255.95