Finding the Fourth Proportional to 3,938.56, 5,915.97 and 3,807.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.56 : 5,915.97 = 3,807.34 : x
2. Step 2: Convert to fraction form
   3,938.56/5,915.97 = 3,807.34/x
3. Step 3: Cross multiply
   3,938.56x = 5,915.97 × 3,807.34
4. Step 4: Simplify right side
   3,938.56x = 22,524,094.43
5. Step 5: Solve for x
   x = 22,524,094.43/3,938.56
6. Step 6: Final answer
   x = 5,718.87