Finding the Fourth Proportional to 12,655.68, 17,464.56 and 7,066.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,655.68 : 17,464.56 = 7,066.80 : x
2. Step 2: Convert to fraction form
   12,655.68/17,464.56 = 7,066.80/x
3. Step 3: Cross multiply
   12,655.68x = 17,464.56 × 7,066.80
4. Step 4: Simplify right side
   12,655.68x = 123,418,552.61
5. Step 5: Solve for x
   x = 123,418,552.61/12,655.68
6. Step 6: Final answer
   x = 9,752.03