Finding the Fourth Proportional to 12,727.23, 17,559.64 and 7,418.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,727.23 : 17,559.64 = 7,418.28 : x
2. Step 2: Convert to fraction form
   12,727.23/17,559.64 = 7,418.28/x
3. Step 3: Cross multiply
   12,727.23x = 17,559.64 × 7,418.28
4. Step 4: Simplify right side
   12,727.23x = 130,262,359.61
5. Step 5: Solve for x
   x = 130,262,359.61/12,727.23
6. Step 6: Final answer
   x = 10,234.94