Finding the Fourth Proportional to 12,731.30, 17,568.06 and 7,426.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,731.30 : 17,568.06 = 7,426.58 : x
2. Step 2: Convert to fraction form
   12,731.30/17,568.06 = 7,426.58/x
3. Step 3: Cross multiply
   12,731.30x = 17,568.06 × 7,426.58
4. Step 4: Simplify right side
   12,731.30x = 130,470,603.03
5. Step 5: Solve for x
   x = 130,470,603.03/12,731.30
6. Step 6: Final answer
   x = 10,248.02