Finding the Fourth Proportional to 12,628.08, 17,426.88 and 7,320.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,628.08 : 17,426.88 = 7,320.96 : x
2. Step 2: Convert to fraction form
   12,628.08/17,426.88 = 7,320.96/x
3. Step 3: Cross multiply
   12,628.08x = 17,426.88 × 7,320.96
4. Step 4: Simplify right side
   12,628.08x = 127,581,491.40
5. Step 5: Solve for x
   x = 127,581,491.40/12,628.08
6. Step 6: Final answer
   x = 10,103.00