Finding the Fourth Proportional to 8,160.72, 11,261.73 and 4,434.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,160.72 : 11,261.73 = 4,434.72 : x
2. Step 2: Convert to fraction form
   8,160.72/11,261.73 = 4,434.72/x
3. Step 3: Cross multiply
   8,160.72x = 11,261.73 × 4,434.72
4. Step 4: Simplify right side
   8,160.72x = 49,942,619.27
5. Step 5: Solve for x
   x = 49,942,619.27/8,160.72
6. Step 6: Final answer
   x = 6,119.88