Finding the Fourth Proportional to 8,047.57, 12,074.69 and 4,345.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,047.57 : 12,074.69 = 4,345.45 : x
2. Step 2: Convert to fraction form
   8,047.57/12,074.69 = 4,345.45/x
3. Step 3: Cross multiply
   8,047.57x = 12,074.69 × 4,345.45
4. Step 4: Simplify right side
   8,047.57x = 52,469,879.56
5. Step 5: Solve for x
   x = 52,469,879.56/8,047.57
6. Step 6: Final answer
   x = 6,519.97