Finding the Fourth Proportional to 21,968.01, 30,314.65 and 13,016.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,968.01 : 30,314.65 = 13,016.34 : x
2. Step 2: Convert to fraction form
   21,968.01/30,314.65 = 13,016.34/x
3. Step 3: Cross multiply
   21,968.01x = 30,314.65 × 13,016.34
4. Step 4: Simplify right side
   21,968.01x = 394,585,791.38
5. Step 5: Solve for x
   x = 394,585,791.38/21,968.01
6. Step 6: Final answer
   x = 17,961.84