Finding the Fourth Proportional to 19,667.00, 27,136.28 and 13,294.60

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.00 : 27,136.28 = 13,294.60 : x
2. Step 2: Convert to fraction form
   19,667.00/27,136.28 = 13,294.60/x
3. Step 3: Cross multiply
   19,667.00x = 27,136.28 × 13,294.60
4. Step 4: Simplify right side
   19,667.00x = 360,765,953.48
5. Step 5: Solve for x
   x = 360,765,953.48/19,667.00
6. Step 6: Final answer
   x = 18,343.72