Finding the Fourth Proportional to 5,714.37, 7,886.57 and 3,196.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,714.37 : 7,886.57 = 3,196.62 : x
2. Step 2: Convert to fraction form
   5,714.37/7,886.57 = 3,196.62/x
3. Step 3: Cross multiply
   5,714.37x = 7,886.57 × 3,196.62
4. Step 4: Simplify right side
   5,714.37x = 25,210,367.39
5. Step 5: Solve for x
   x = 25,210,367.39/5,714.37
6. Step 6: Final answer
   x = 4,411.75