Finding the Fourth Proportional to 5,942.49, 8,910.73 and 3,478.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,942.49 : 8,910.73 = 3,478.05 : x
2. Step 2: Convert to fraction form
   5,942.49/8,910.73 = 3,478.05/x
3. Step 3: Cross multiply
   5,942.49x = 8,910.73 × 3,478.05
4. Step 4: Simplify right side
   5,942.49x = 30,991,964.48
5. Step 5: Solve for x
   x = 30,991,964.48/5,942.49
6. Step 6: Final answer
   x = 5,215.32