Finding the Fourth Proportional to 9,013.24, 13,518.27 and 4,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,013.24 : 13,518.27 = 4,081.72 : x
2. Step 2: Convert to fraction form
   9,013.24/13,518.27 = 4,081.72/x
3. Step 3: Cross multiply
   9,013.24x = 13,518.27 × 4,081.72
4. Step 4: Simplify right side
   9,013.24x = 55,177,793.02
5. Step 5: Solve for x
   x = 55,177,793.02/9,013.24
6. Step 6: Final answer
   x = 6,121.86