Finding the Fourth Proportional to 12,628.17, 17,423.75 and 7,591.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,628.17 : 17,423.75 = 7,591.38 : x
2. Step 2: Convert to fraction form
   12,628.17/17,423.75 = 7,591.38/x
3. Step 3: Cross multiply
   12,628.17x = 17,423.75 × 7,591.38
4. Step 4: Simplify right side
   12,628.17x = 132,270,307.28
5. Step 5: Solve for x
   x = 132,270,307.28/12,628.17
6. Step 6: Final answer
   x = 10,474.23