Finding the Fourth Proportional to 13,241.50, 18,273.18 and 7,936.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,241.50 : 18,273.18 = 7,936.31 : x
2. Step 2: Convert to fraction form
   13,241.50/18,273.18 = 7,936.31/x
3. Step 3: Cross multiply
   13,241.50x = 18,273.18 × 7,936.31
4. Step 4: Simplify right side
   13,241.50x = 145,021,621.17
5. Step 5: Solve for x
   x = 145,021,621.17/13,241.50
6. Step 6: Final answer
   x = 10,952.05