Finding the Fourth Proportional to 20,059.72, 30,096.78 and 8,965.48

Step by Step Solution

1. Step 1: Write the proportion equation
   20,059.72 : 30,096.78 = 8,965.48 : x
2. Step 2: Convert to fraction form
   20,059.72/30,096.78 = 8,965.48/x
3. Step 3: Cross multiply
   20,059.72x = 30,096.78 × 8,965.48
4. Step 4: Simplify right side
   20,059.72x = 269,832,079.15
5. Step 5: Solve for x
   x = 269,832,079.15/20,059.72
6. Step 6: Final answer
   x = 13,451.44