Finding the Fourth Proportional to 12,662.68, 17,475.12 and 7,628.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.68 : 17,475.12 = 7,628.44 : x
2. Step 2: Convert to fraction form
   12,662.68/17,475.12 = 7,628.44/x
3. Step 3: Cross multiply
   12,662.68x = 17,475.12 × 7,628.44
4. Step 4: Simplify right side
   12,662.68x = 133,307,904.41
5. Step 5: Solve for x
   x = 133,307,904.41/12,662.68
6. Step 6: Final answer
   x = 10,527.62