Finding the Fourth Proportional to 9,255.75, 12,740.83 and 8,074.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,255.75 : 12,740.83 = 8,074.77 : x
2. Step 2: Convert to fraction form
   9,255.75/12,740.83 = 8,074.77/x
3. Step 3: Cross multiply
   9,255.75x = 12,740.83 × 8,074.77
4. Step 4: Simplify right side
   9,255.75x = 102,879,271.86
5. Step 5: Solve for x
   x = 102,879,271.86/9,255.75
6. Step 6: Final answer
   x = 11,115.17