Finding the Fourth Proportional to 5,771.34, 7,959.89 and 4,178.21

Step by Step Solution

1. Step 1: Write the proportion equation
   5,771.34 : 7,959.89 = 4,178.21 : x
2. Step 2: Convert to fraction form
   5,771.34/7,959.89 = 4,178.21/x
3. Step 3: Cross multiply
   5,771.34x = 7,959.89 × 4,178.21
4. Step 4: Simplify right side
   5,771.34x = 33,258,062.64
5. Step 5: Solve for x
   x = 33,258,062.64/5,771.34
6. Step 6: Final answer
   x = 5,762.62