Finding the Fourth Proportional to 12,935.28, 17,836.56 and 8,736.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,935.28 : 17,836.56 = 8,736.24 : x
2. Step 2: Convert to fraction form
   12,935.28/17,836.56 = 8,736.24/x
3. Step 3: Cross multiply
   12,935.28x = 17,836.56 × 8,736.24
4. Step 4: Simplify right side
   12,935.28x = 155,824,468.93
5. Step 5: Solve for x
   x = 155,824,468.93/12,935.28
6. Step 6: Final answer
   x = 12,046.47