Finding the Fourth Proportional to 8,722.42, 12,037.27 and 4,945.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,722.42 : 12,037.27 = 4,945.54 : x
2. Step 2: Convert to fraction form
   8,722.42/12,037.27 = 4,945.54/x
3. Step 3: Cross multiply
   8,722.42x = 12,037.27 × 4,945.54
4. Step 4: Simplify right side
   8,722.42x = 59,530,800.28
5. Step 5: Solve for x
   x = 59,530,800.28/8,722.42
6. Step 6: Final answer
   x = 6,825.03