Finding the Fourth Proportional to 8,091.37, 12,137.55 and 2,544.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,091.37 : 12,137.55 = 2,544.89 : x
2. Step 2: Convert to fraction form
   8,091.37/12,137.55 = 2,544.89/x
3. Step 3: Cross multiply
   8,091.37x = 12,137.55 × 2,544.89
4. Step 4: Simplify right side
   8,091.37x = 30,888,761.80
5. Step 5: Solve for x
   x = 30,888,761.80/8,091.37
6. Step 6: Final answer
   x = 3,817.50