Finding the Fourth Proportional to 5,921.46, 8,170.72 and 3,934.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,921.46 : 8,170.72 = 3,934.94 : x
2. Step 2: Convert to fraction form
   5,921.46/8,170.72 = 3,934.94/x
3. Step 3: Cross multiply
   5,921.46x = 8,170.72 × 3,934.94
4. Step 4: Simplify right side
   5,921.46x = 32,151,242.27
5. Step 5: Solve for x
   x = 32,151,242.27/5,921.46
6. Step 6: Final answer
   x = 5,429.61