Finding the Fourth Proportional to 12,077.27, 18,116.71 and 4,180.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.27 : 18,116.71 = 4,180.58 : x
2. Step 2: Convert to fraction form
   12,077.27/18,116.71 = 4,180.58/x
3. Step 3: Cross multiply
   12,077.27x = 18,116.71 × 4,180.58
4. Step 4: Simplify right side
   12,077.27x = 75,738,355.49
5. Step 5: Solve for x
   x = 75,738,355.49/12,077.27
6. Step 6: Final answer
   x = 6,271.15