Finding the Fourth Proportional to 20,151.34, 27,807.46 and 11,077.36

Step by Step Solution

1. Step 1: Write the proportion equation
   20,151.34 : 27,807.46 = 11,077.36 : x
2. Step 2: Convert to fraction form
   20,151.34/27,807.46 = 11,077.36/x
3. Step 3: Cross multiply
   20,151.34x = 27,807.46 × 11,077.36
4. Step 4: Simplify right side
   20,151.34x = 308,033,147.89
5. Step 5: Solve for x
   x = 308,033,147.89/20,151.34
6. Step 6: Final answer
   x = 15,285.99