Finding the Fourth Proportional to 12,756.06, 17,605.46 and 10,628.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,756.06 : 17,605.46 = 10,628.22 : x
2. Step 2: Convert to fraction form
   12,756.06/17,605.46 = 10,628.22/x
3. Step 3: Cross multiply
   12,756.06x = 17,605.46 × 10,628.22
4. Step 4: Simplify right side
   12,756.06x = 187,114,648.94
5. Step 5: Solve for x
   x = 187,114,648.94/12,756.06
6. Step 6: Final answer
   x = 14,668.69