Finding the Fourth Proportional to 6,172.86, 8,518.22 and 3,377.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,172.86 : 8,518.22 = 3,377.82 : x
2. Step 2: Convert to fraction form
   6,172.86/8,518.22 = 3,377.82/x
3. Step 3: Cross multiply
   6,172.86x = 8,518.22 × 3,377.82
4. Step 4: Simplify right side
   6,172.86x = 28,773,013.88
5. Step 5: Solve for x
   x = 28,773,013.88/6,172.86
6. Step 6: Final answer
   x = 4,661.21