Finding the Fourth Proportional to 7,079.98, 9,769.92 and 3,936.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,079.98 : 9,769.92 = 3,936.22 : x
2. Step 2: Convert to fraction form
   7,079.98/9,769.92 = 3,936.22/x
3. Step 3: Cross multiply
   7,079.98x = 9,769.92 × 3,936.22
4. Step 4: Simplify right side
   7,079.98x = 38,456,554.50
5. Step 5: Solve for x
   x = 38,456,554.50/7,079.98
6. Step 6: Final answer
   x = 5,431.73