Finding the Fourth Proportional to 12,792.72, 17,648.72 and 9,443.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,792.72 : 17,648.72 = 9,443.52 : x
2. Step 2: Convert to fraction form
   12,792.72/17,648.72 = 9,443.52/x
3. Step 3: Cross multiply
   12,792.72x = 17,648.72 × 9,443.52
4. Step 4: Simplify right side
   12,792.72x = 166,666,040.29
5. Step 5: Solve for x
   x = 166,666,040.29/12,792.72
6. Step 6: Final answer
   x = 13,028.19