Finding the Fourth Proportional to 8,751.31, 12,078.62 and 4,974.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,751.31 : 12,078.62 = 4,974.73 : x
2. Step 2: Convert to fraction form
   8,751.31/12,078.62 = 4,974.73/x
3. Step 3: Cross multiply
   8,751.31x = 12,078.62 × 4,974.73
4. Step 4: Simplify right side
   8,751.31x = 60,087,873.27
5. Step 5: Solve for x
   x = 60,087,873.27/8,751.31
6. Step 6: Final answer
   x = 6,866.16