Finding the Fourth Proportional to 20,061.72, 27,682.92 and 11,107.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,061.72 : 27,682.92 = 11,107.98 : x
2. Step 2: Convert to fraction form
   20,061.72/27,682.92 = 11,107.98/x
3. Step 3: Cross multiply
   20,061.72x = 27,682.92 × 11,107.98
4. Step 4: Simplify right side
   20,061.72x = 307,501,321.70
5. Step 5: Solve for x
   x = 307,501,321.70/20,061.72
6. Step 6: Final answer
   x = 15,327.76