Finding the Fourth Proportional to 5,705.73, 7,879.35 and 5,395.13

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705.73 : 7,879.35 = 5,395.13 : x
2. Step 2: Convert to fraction form
   5,705.73/7,879.35 = 5,395.13/x
3. Step 3: Cross multiply
   5,705.73x = 7,879.35 × 5,395.13
4. Step 4: Simplify right side
   5,705.73x = 42,510,078.17
5. Step 5: Solve for x
   x = 42,510,078.17/5,705.73
6. Step 6: Final answer
   x = 7,450.42