Finding the Fourth Proportional to 8,876.18, 12,249.53 and 5,100.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,876.18 : 12,249.53 = 5,100.57 : x
2. Step 2: Convert to fraction form
   8,876.18/12,249.53 = 5,100.57/x
3. Step 3: Cross multiply
   8,876.18x = 12,249.53 × 5,100.57
4. Step 4: Simplify right side
   8,876.18x = 62,479,578.86
5. Step 5: Solve for x
   x = 62,479,578.86/8,876.18
6. Step 6: Final answer
   x = 7,039.01