Finding the Fourth Proportional to 20,061.33, 27,677.81 and 11,563.18

Step by Step Solution

1. Step 1: Write the proportion equation
   20,061.33 : 27,677.81 = 11,563.18 : x
2. Step 2: Convert to fraction form
   20,061.33/27,677.81 = 11,563.18/x
3. Step 3: Cross multiply
   20,061.33x = 27,677.81 × 11,563.18
4. Step 4: Simplify right side
   20,061.33x = 320,043,499.04
5. Step 5: Solve for x
   x = 320,043,499.04/20,061.33
6. Step 6: Final answer
   x = 15,953.25