Finding the Fourth Proportional to 21,964.05, 30,308.46 and 13,010.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,964.05 : 30,308.46 = 13,010.04 : x
2. Step 2: Convert to fraction form
   21,964.05/30,308.46 = 13,010.04/x
3. Step 3: Cross multiply
   21,964.05x = 30,308.46 × 13,010.04
4. Step 4: Simplify right side
   21,964.05x = 394,314,276.94
5. Step 5: Solve for x
   x = 394,314,276.94/21,964.05
6. Step 6: Final answer
   x = 17,952.71