Finding the Fourth Proportional to 13,040.61, 17,996.35 and 7,934.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,040.61 : 17,996.35 = 7,934.37 : x
2. Step 2: Convert to fraction form
   13,040.61/17,996.35 = 7,934.37/x
3. Step 3: Cross multiply
   13,040.61x = 17,996.35 × 7,934.37
4. Step 4: Simplify right side
   13,040.61x = 142,789,569.90
5. Step 5: Solve for x
   x = 142,789,569.90/13,040.61
6. Step 6: Final answer
   x = 10,949.61