Finding the Fourth Proportional to 12,662.69, 17,475.18 and 7,628.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.69 : 17,475.18 = 7,628.49 : x
2. Step 2: Convert to fraction form
   12,662.69/17,475.18 = 7,628.49/x
3. Step 3: Cross multiply
   12,662.69x = 17,475.18 × 7,628.49
4. Step 4: Simplify right side
   12,662.69x = 133,309,235.88
5. Step 5: Solve for x
   x = 133,309,235.88/12,662.69
6. Step 6: Final answer
   x = 10,527.72