Finding the Fourth Proportional to 12,727.74, 17,564.67 and 7,426.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,727.74 : 17,564.67 = 7,426.02 : x
2. Step 2: Convert to fraction form
   12,727.74/17,564.67 = 7,426.02/x
3. Step 3: Cross multiply
   12,727.74x = 17,564.67 × 7,426.02
4. Step 4: Simplify right side
   12,727.74x = 130,435,590.71
5. Step 5: Solve for x
   x = 130,435,590.71/12,727.74
6. Step 6: Final answer
   x = 10,248.13