Finding the Fourth Proportional to 6,111.37, 8,432.62 and 3,986.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.37 : 8,432.62 = 3,986.34 : x
2. Step 2: Convert to fraction form
   6,111.37/8,432.62 = 3,986.34/x
3. Step 3: Cross multiply
   6,111.37x = 8,432.62 × 3,986.34
4. Step 4: Simplify right side
   6,111.37x = 33,615,290.41
5. Step 5: Solve for x
   x = 33,615,290.41/6,111.37
6. Step 6: Final answer
   x = 5,500.45