Finding the Fourth Proportional to 10,566.72, 15,850.35 and 3,171.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,566.72 : 15,850.35 = 3,171.42 : x
2. Step 2: Convert to fraction form
   10,566.72/15,850.35 = 3,171.42/x
3. Step 3: Cross multiply
   10,566.72x = 15,850.35 × 3,171.42
4. Step 4: Simplify right side
   10,566.72x = 50,268,117.00
5. Step 5: Solve for x
   x = 50,268,117.00/10,566.72
6. Step 6: Final answer
   x = 4,757.21