Finding the Fourth Proportional to 20,141.16, 27,796.68 and 12,185.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,141.16 : 27,796.68 = 12,185.34 : x
2. Step 2: Convert to fraction form
   20,141.16/27,796.68 = 12,185.34/x
3. Step 3: Cross multiply
   20,141.16x = 27,796.68 × 12,185.34
4. Step 4: Simplify right side
   20,141.16x = 338,711,996.67
5. Step 5: Solve for x
   x = 338,711,996.67/20,141.16
6. Step 6: Final answer
   x = 16,816.91