Finding the Fourth Proportional to 4,038.41, 5,571.42 and 2,978.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,038.41 : 5,571.42 = 2,978.69 : x
2. Step 2: Convert to fraction form
   4,038.41/5,571.42 = 2,978.69/x
3. Step 3: Cross multiply
   4,038.41x = 5,571.42 × 2,978.69
4. Step 4: Simplify right side
   4,038.41x = 16,595,536.52
5. Step 5: Solve for x
   x = 16,595,536.52/4,038.41
6. Step 6: Final answer
   x = 4,109.43