Finding the Fourth Proportional to 12,731.01, 17,567.71 and 7,426.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,731.01 : 17,567.71 = 7,426.32 : x
2. Step 2: Convert to fraction form
   12,731.01/17,567.71 = 7,426.32/x
3. Step 3: Cross multiply
   12,731.01x = 17,567.71 × 7,426.32
4. Step 4: Simplify right side
   12,731.01x = 130,463,436.13
5. Step 5: Solve for x
   x = 130,463,436.13/12,731.01
6. Step 6: Final answer
   x = 10,247.69