Finding the Fourth Proportional to 8,877.64, 12,249.78 and 5,100.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,877.64 : 12,249.78 = 5,100.94 : x
2. Step 2: Convert to fraction form
   8,877.64/12,249.78 = 5,100.94/x
3. Step 3: Cross multiply
   8,877.64x = 12,249.78 × 5,100.94
4. Step 4: Simplify right side
   8,877.64x = 62,485,392.79
5. Step 5: Solve for x
   x = 62,485,392.79/8,877.64
6. Step 6: Final answer
   x = 7,038.51