Finding the Fourth Proportional to 8,091.50, 12,137.77 and 2,545.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,091.50 : 12,137.77 = 2,545.05 : x
2. Step 2: Convert to fraction form
   8,091.50/12,137.77 = 2,545.05/x
3. Step 3: Cross multiply
   8,091.50x = 12,137.77 × 2,545.05
4. Step 4: Simplify right side
   8,091.50x = 30,891,255.52
5. Step 5: Solve for x
   x = 30,891,255.52/8,091.50
6. Step 6: Final answer
   x = 3,817.74