Finding the Fourth Proportional to 12,655.84, 17,463.36 and 7,067.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,655.84 : 17,463.36 = 7,067.20 : x
2. Step 2: Convert to fraction form
   12,655.84/17,463.36 = 7,067.20/x
3. Step 3: Cross multiply
   12,655.84x = 17,463.36 × 7,067.20
4. Step 4: Simplify right side
   12,655.84x = 123,417,057.79
5. Step 5: Solve for x
   x = 123,417,057.79/12,655.84
6. Step 6: Final answer
   x = 9,751.79