Finding the Fourth Proportional to 21,964.96, 30,300.23 and 13,469.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,964.96 : 30,300.23 = 13,469.07 : x
2. Step 2: Convert to fraction form
   21,964.96/30,300.23 = 13,469.07/x
3. Step 3: Cross multiply
   21,964.96x = 30,300.23 × 13,469.07
4. Step 4: Simplify right side
   21,964.96x = 408,115,819.98
5. Step 5: Solve for x
   x = 408,115,819.98/21,964.96
6. Step 6: Final answer
   x = 18,580.32