Finding the Fourth Proportional to 6,109.37, 8,427.06 and 3,872.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.37 : 8,427.06 = 3,872.55 : x
2. Step 2: Convert to fraction form
   6,109.37/8,427.06 = 3,872.55/x
3. Step 3: Cross multiply
   6,109.37x = 8,427.06 × 3,872.55
4. Step 4: Simplify right side
   6,109.37x = 32,634,211.20
5. Step 5: Solve for x
   x = 32,634,211.20/6,109.37
6. Step 6: Final answer
   x = 5,341.67