Finding the Fourth Proportional to 7,019.59, 10,520.27 and 2,854.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.59 : 10,520.27 = 2,854.75 : x
2. Step 2: Convert to fraction form
   7,019.59/10,520.27 = 2,854.75/x
3. Step 3: Cross multiply
   7,019.59x = 10,520.27 × 2,854.75
4. Step 4: Simplify right side
   7,019.59x = 30,032,721.62
5. Step 5: Solve for x
   x = 30,032,721.62/7,019.59
6. Step 6: Final answer
   x = 4,278.42