Finding the Fourth Proportional to 5,997.05, 8,979.43 and 3,911.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,997.05 : 8,979.43 = 3,911.89 : x
2. Step 2: Convert to fraction form
   5,997.05/8,979.43 = 3,911.89/x
3. Step 3: Cross multiply
   5,997.05x = 8,979.43 × 3,911.89
4. Step 4: Simplify right side
   5,997.05x = 35,126,542.42
5. Step 5: Solve for x
   x = 35,126,542.42/5,997.05
6. Step 6: Final answer
   x = 5,857.30