Finding the Fourth Proportional to 8,118.57, 12,176.83 and 2,572.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.57 : 12,176.83 = 2,572.48 : x
2. Step 2: Convert to fraction form
   8,118.57/12,176.83 = 2,572.48/x
3. Step 3: Cross multiply
   8,118.57x = 12,176.83 × 2,572.48
4. Step 4: Simplify right side
   8,118.57x = 31,324,577.89
5. Step 5: Solve for x
   x = 31,324,577.89/8,118.57
6. Step 6: Final answer
   x = 3,858.39