Finding the Fourth Proportional to 7,081.36, 10,623.30 and 2,919.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.36 : 10,623.30 = 2,919.10 : x
2. Step 2: Convert to fraction form
   7,081.36/10,623.30 = 2,919.10/x
3. Step 3: Cross multiply
   7,081.36x = 10,623.30 × 2,919.10
4. Step 4: Simplify right side
   7,081.36x = 31,010,443.99
5. Step 5: Solve for x
   x = 31,010,443.99/7,081.36
6. Step 6: Final answer
   x = 4,379.17