Finding the Fourth Proportional to 3,859.87, 5,755.90 and 3,824.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,859.87 : 5,755.90 = 3,824.79 : x
2. Step 2: Convert to fraction form
   3,859.87/5,755.90 = 3,824.79/x
3. Step 3: Cross multiply
   3,859.87x = 5,755.90 × 3,824.79
4. Step 4: Simplify right side
   3,859.87x = 22,015,108.76
5. Step 5: Solve for x
   x = 22,015,108.76/3,859.87
6. Step 6: Final answer
   x = 5,703.59