Finding the Fourth Proportional to 9,177.82, 12,665.22 and 4,986.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,177.82 : 12,665.22 = 4,986.10 : x
2. Step 2: Convert to fraction form
   9,177.82/12,665.22 = 4,986.10/x
3. Step 3: Cross multiply
   9,177.82x = 12,665.22 × 4,986.10
4. Step 4: Simplify right side
   9,177.82x = 63,150,053.44
5. Step 5: Solve for x
   x = 63,150,053.44/9,177.82
6. Step 6: Final answer
   x = 6,880.72