Finding the Fourth Proportional to 8,081.50, 11,152.65 and 4,939.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.50 : 11,152.65 = 4,939.42 : x
2. Step 2: Convert to fraction form
   8,081.50/11,152.65 = 4,939.42/x
3. Step 3: Cross multiply
   8,081.50x = 11,152.65 × 4,939.42
4. Step 4: Simplify right side
   8,081.50x = 55,087,622.46
5. Step 5: Solve for x
   x = 55,087,622.46/8,081.50
6. Step 6: Final answer
   x = 6,816.51