Finding the Fourth Proportional to 19,667.97, 29,469.14 and 13,814.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.97 : 29,469.14 = 13,814.10 : x
2. Step 2: Convert to fraction form
   19,667.97/29,469.14 = 13,814.10/x
3. Step 3: Cross multiply
   19,667.97x = 29,469.14 × 13,814.10
4. Step 4: Simplify right side
   19,667.97x = 407,089,681.41
5. Step 5: Solve for x
   x = 407,089,681.41/19,667.97
6. Step 6: Final answer
   x = 20,698.10