Finding the Fourth Proportional to 12,936.38, 17,852.20 and 7,347.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,936.38 : 17,852.20 = 7,347.38 : x
2. Step 2: Convert to fraction form
   12,936.38/17,852.20 = 7,347.38/x
3. Step 3: Cross multiply
   12,936.38x = 17,852.20 × 7,347.38
4. Step 4: Simplify right side
   12,936.38x = 131,166,789.61
5. Step 5: Solve for x
   x = 131,166,789.61/12,936.38
6. Step 6: Final answer
   x = 10,139.38