Finding the Fourth Proportional to 8,111.58, 12,168.27 and 4,419.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.58 : 12,168.27 = 4,419.18 : x
2. Step 2: Convert to fraction form
   8,111.58/12,168.27 = 4,419.18/x
3. Step 3: Cross multiply
   8,111.58x = 12,168.27 × 4,419.18
4. Step 4: Simplify right side
   8,111.58x = 53,773,775.42
5. Step 5: Solve for x
   x = 53,773,775.42/8,111.58
6. Step 6: Final answer
   x = 6,629.26