Finding the Fourth Proportional to 5,148.68, 7,105.17 and 2,790.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,148.68 : 7,105.17 = 2,790.82 : x
2. Step 2: Convert to fraction form
   5,148.68/7,105.17 = 2,790.82/x
3. Step 3: Cross multiply
   5,148.68x = 7,105.17 × 2,790.82
4. Step 4: Simplify right side
   5,148.68x = 19,829,250.54
5. Step 5: Solve for x
   x = 19,829,250.54/5,148.68
6. Step 6: Final answer
   x = 3,851.33