Finding the Fourth Proportional to 12,996.45, 17,935.17 and 7,028.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,996.45 : 17,935.17 = 7,028.10 : x
2. Step 2: Convert to fraction form
   12,996.45/17,935.17 = 7,028.10/x
3. Step 3: Cross multiply
   12,996.45x = 17,935.17 × 7,028.10
4. Step 4: Simplify right side
   12,996.45x = 126,050,141.92
5. Step 5: Solve for x
   x = 126,050,141.92/12,996.45
6. Step 6: Final answer
   x = 9,698.81