Finding the Fourth Proportional to 20,096.82, 30,139.06 and 13,896.68

Step by Step Solution

1. Step 1: Write the proportion equation
   20,096.82 : 30,139.06 = 13,896.68 : x
2. Step 2: Convert to fraction form
   20,096.82/30,139.06 = 13,896.68/x
3. Step 3: Cross multiply
   20,096.82x = 30,139.06 × 13,896.68
4. Step 4: Simplify right side
   20,096.82x = 418,832,872.32
5. Step 5: Solve for x
   x = 418,832,872.32/20,096.82
6. Step 6: Final answer
   x = 20,840.75