Finding the Fourth Proportional to 5,940.38, 8,893.56 and 3,989.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,940.38 : 8,893.56 = 3,989.10 : x
2. Step 2: Convert to fraction form
   5,940.38/8,893.56 = 3,989.10/x
3. Step 3: Cross multiply
   5,940.38x = 8,893.56 × 3,989.10
4. Step 4: Simplify right side
   5,940.38x = 35,477,300.20
5. Step 5: Solve for x
   x = 35,477,300.20/5,940.38
6. Step 6: Final answer
   x = 5,972.23