Finding the Fourth Proportional to 8,079.48, 12,112.74 and 4,995

Step by Step Solution

1. Step 1: Write the proportion equation
   8,079.48 : 12,112.74 = 4,995 : x
2. Step 2: Convert to fraction form
   8,079.48/12,112.74 = 4,995/x
3. Step 3: Cross multiply
   8,079.48x = 12,112.74 × 4,995
4. Step 4: Simplify right side
   8,079.48x = 60,503,136.30
5. Step 5: Solve for x
   x = 60,503,136.30/8,079.48
6. Step 6: Final answer
   x = 7,488.49