Finding the Fourth Proportional to 5,158.25, 7,118.33 and 2,920.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,158.25 : 7,118.33 = 2,920.08 : x
2. Step 2: Convert to fraction form
   5,158.25/7,118.33 = 2,920.08/x
3. Step 3: Cross multiply
   5,158.25x = 7,118.33 × 2,920.08
4. Step 4: Simplify right side
   5,158.25x = 20,786,121.59
5. Step 5: Solve for x
   x = 20,786,121.59/5,158.25
6. Step 6: Final answer
   x = 4,029.69