Finding the Fourth Proportional to 5,912.84, 8,872.27 and 3,939.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,912.84 : 8,872.27 = 3,939.82 : x
2. Step 2: Convert to fraction form
   5,912.84/8,872.27 = 3,939.82/x
3. Step 3: Cross multiply
   5,912.84x = 8,872.27 × 3,939.82
4. Step 4: Simplify right side
   5,912.84x = 34,955,146.79
5. Step 5: Solve for x
   x = 34,955,146.79/5,912.84
6. Step 6: Final answer
   x = 5,911.74