Finding the Fourth Proportional to 7,919.59, 10,919.10 and 5,081.95

Step by Step Solution

1. Step 1: Write the proportion equation
   7,919.59 : 10,919.10 = 5,081.95 : x
2. Step 2: Convert to fraction form
   7,919.59/10,919.10 = 5,081.95/x
3. Step 3: Cross multiply
   7,919.59x = 10,919.10 × 5,081.95
4. Step 4: Simplify right side
   7,919.59x = 55,490,320.25
5. Step 5: Solve for x
   x = 55,490,320.25/7,919.59
6. Step 6: Final answer
   x = 7,006.72