Finding the Fourth Proportional to 5,571.42, 8,359.86 and 3,938.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,571.42 : 8,359.86 = 3,938.46 : x
2. Step 2: Convert to fraction form
   5,571.42/8,359.86 = 3,938.46/x
3. Step 3: Cross multiply
   5,571.42x = 8,359.86 × 3,938.46
4. Step 4: Simplify right side
   5,571.42x = 32,924,974.22
5. Step 5: Solve for x
   x = 32,924,974.22/5,571.42
6. Step 6: Final answer
   x = 5,909.62