Finding the Fourth Proportional to 8,074.24, 12,085.44 and 5,436.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,074.24 : 12,085.44 = 5,436.88 : x
2. Step 2: Convert to fraction form
   8,074.24/12,085.44 = 5,436.88/x
3. Step 3: Cross multiply
   8,074.24x = 12,085.44 × 5,436.88
4. Step 4: Simplify right side
   8,074.24x = 65,707,087.03
5. Step 5: Solve for x
   x = 65,707,087.03/8,074.24
6. Step 6: Final answer
   x = 8,137.87