Finding the Fourth Proportional to 8,872.72, 13,303.56 and 3,323.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,872.72 : 13,303.56 = 3,323.20 : x
2. Step 2: Convert to fraction form
   8,872.72/13,303.56 = 3,323.20/x
3. Step 3: Cross multiply
   8,872.72x = 13,303.56 × 3,323.20
4. Step 4: Simplify right side
   8,872.72x = 44,210,390.59
5. Step 5: Solve for x
   x = 44,210,390.59/8,872.72
6. Step 6: Final answer
   x = 4,982.73