Finding the Fourth Proportional to 20,061.33, 27,686.18 and 11,109.66

Step by Step Solution

1. Step 1: Write the proportion equation
   20,061.33 : 27,686.18 = 11,109.66 : x
2. Step 2: Convert to fraction form
   20,061.33/27,686.18 = 11,109.66/x
3. Step 3: Cross multiply
   20,061.33x = 27,686.18 × 11,109.66
4. Step 4: Simplify right side
   20,061.33x = 307,584,046.50
5. Step 5: Solve for x
   x = 307,584,046.50/20,061.33
6. Step 6: Final answer
   x = 15,332.19