Finding the Fourth Proportional to 5,148.42, 7,104.83 and 2,790.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,148.42 : 7,104.83 = 2,790.56 : x
2. Step 2: Convert to fraction form
   5,148.42/7,104.83 = 2,790.56/x
3. Step 3: Cross multiply
   5,148.42x = 7,104.83 × 2,790.56
4. Step 4: Simplify right side
   5,148.42x = 19,826,404.93
5. Step 5: Solve for x
   x = 19,826,404.93/5,148.42
6. Step 6: Final answer
   x = 3,850.97