Finding the Fourth Proportional to 5,975.94, 8,978.56 and 5,644.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,975.94 : 8,978.56 = 5,644.38 : x
2. Step 2: Convert to fraction form
   5,975.94/8,978.56 = 5,644.38/x
3. Step 3: Cross multiply
   5,975.94x = 8,978.56 × 5,644.38
4. Step 4: Simplify right side
   5,975.94x = 50,678,404.49
5. Step 5: Solve for x
   x = 50,678,404.49/5,975.94
6. Step 6: Final answer
   x = 8,480.41