Finding the Fourth Proportional to 3,942.45, 5,903.42 and 3,825.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.45 : 5,903.42 = 3,825.58 : x
2. Step 2: Convert to fraction form
   3,942.45/5,903.42 = 3,825.58/x
3. Step 3: Cross multiply
   3,942.45x = 5,903.42 × 3,825.58
4. Step 4: Simplify right side
   3,942.45x = 22,583,998.81
5. Step 5: Solve for x
   x = 22,583,998.81/3,942.45
6. Step 6: Final answer
   x = 5,728.42