Finding the Fourth Proportional to 6,111.09, 8,420.27 and 4,118.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.09 : 8,420.27 = 4,118.18 : x
2. Step 2: Convert to fraction form
   6,111.09/8,420.27 = 4,118.18/x
3. Step 3: Cross multiply
   6,111.09x = 8,420.27 × 4,118.18
4. Step 4: Simplify right side
   6,111.09x = 34,676,218.85
5. Step 5: Solve for x
   x = 34,676,218.85/6,111.09
6. Step 6: Final answer
   x = 5,674.31