Finding the Fourth Proportional to 12,628.49, 17,425.28 and 7,591.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,628.49 : 17,425.28 = 7,591.51 : x
2. Step 2: Convert to fraction form
   12,628.49/17,425.28 = 7,591.51/x
3. Step 3: Cross multiply
   12,628.49x = 17,425.28 × 7,591.51
4. Step 4: Simplify right side
   12,628.49x = 132,284,162.79
5. Step 5: Solve for x
   x = 132,284,162.79/12,628.49
6. Step 6: Final answer
   x = 10,475.06