Finding the Fourth Proportional to 3,849.82, 5,777.20 and 3,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,849.82 : 5,777.20 = 3,818.50 : x
2. Step 2: Convert to fraction form
   3,849.82/5,777.20 = 3,818.50/x
3. Step 3: Cross multiply
   3,849.82x = 5,777.20 × 3,818.50
4. Step 4: Simplify right side
   3,849.82x = 22,060,238.20
5. Step 5: Solve for x
   x = 22,060,238.20/3,849.82
6. Step 6: Final answer
   x = 5,730.20