Finding the Fourth Proportional to 6,105.55, 8,425.20 and 4,118.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.55 : 8,425.20 = 4,118.80 : x
2. Step 2: Convert to fraction form
   6,105.55/8,425.20 = 4,118.80/x
3. Step 3: Cross multiply
   6,105.55x = 8,425.20 × 4,118.80
4. Step 4: Simplify right side
   6,105.55x = 34,701,713.76
5. Step 5: Solve for x
   x = 34,701,713.76/6,105.55
6. Step 6: Final answer
   x = 5,683.63