Finding the Fourth Proportional to 3,942.49, 5,906.77 and 3,513.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.49 : 5,906.77 = 3,513.46 : x
2. Step 2: Convert to fraction form
   3,942.49/5,906.77 = 3,513.46/x
3. Step 3: Cross multiply
   3,942.49x = 5,906.77 × 3,513.46
4. Step 4: Simplify right side
   3,942.49x = 20,753,200.12
5. Step 5: Solve for x
   x = 20,753,200.12/3,942.49
6. Step 6: Final answer
   x = 5,263.98