Finding the Fourth Proportional to 12,733.09, 17,572.62 and 7,426.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,733.09 : 17,572.62 = 7,426.78 : x
2. Step 2: Convert to fraction form
   12,733.09/17,572.62 = 7,426.78/x
3. Step 3: Cross multiply
   12,733.09x = 17,572.62 × 7,426.78
4. Step 4: Simplify right side
   12,733.09x = 130,507,982.76
5. Step 5: Solve for x
   x = 130,507,982.76/12,733.09
6. Step 6: Final answer
   x = 10,249.51