Finding the Fourth Proportional to 33,136.78, 45,722.52 and 19,711.30

Step by Step Solution

1. Step 1: Write the proportion equation
   33,136.78 : 45,722.52 = 19,711.30 : x
2. Step 2: Convert to fraction form
   33,136.78/45,722.52 = 19,711.30/x
3. Step 3: Cross multiply
   33,136.78x = 45,722.52 × 19,711.30
4. Step 4: Simplify right side
   33,136.78x = 901,250,308.48
5. Step 5: Solve for x
   x = 901,250,308.48/33,136.78
6. Step 6: Final answer
   x = 27,197.88