Finding the Fourth Proportional to 12,896.88, 17,796.56 and 7,154.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,896.88 : 17,796.56 = 7,154.48 : x
2. Step 2: Convert to fraction form
   12,896.88/17,796.56 = 7,154.48/x
3. Step 3: Cross multiply
   12,896.88x = 17,796.56 × 7,154.48
4. Step 4: Simplify right side
   12,896.88x = 127,325,132.59
5. Step 5: Solve for x
   x = 127,325,132.59/12,896.88
6. Step 6: Final answer
   x = 9,872.55