Finding the Fourth Proportional to 5,695.57, 7,864.84 and 3,574.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,695.57 : 7,864.84 = 3,574.78 : x
2. Step 2: Convert to fraction form
   5,695.57/7,864.84 = 3,574.78/x
3. Step 3: Cross multiply
   5,695.57x = 7,864.84 × 3,574.78
4. Step 4: Simplify right side
   5,695.57x = 28,115,091.73
5. Step 5: Solve for x
   x = 28,115,091.73/5,695.57
6. Step 6: Final answer
   x = 4,936.31