Finding the Fourth Proportional to 5,747.71, 8,612.55 and 3,996.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,747.71 : 8,612.55 = 3,996.12 : x
2. Step 2: Convert to fraction form
   5,747.71/8,612.55 = 3,996.12/x
3. Step 3: Cross multiply
   5,747.71x = 8,612.55 × 3,996.12
4. Step 4: Simplify right side
   5,747.71x = 34,416,783.31
5. Step 5: Solve for x
   x = 34,416,783.31/5,747.71
6. Step 6: Final answer
   x = 5,987.91