Finding the Fourth Proportional to 37,936.52, 52,352.42 and 20,940.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,936.52 : 52,352.42 = 20,940.78 : x
2. Step 2: Convert to fraction form
   37,936.52/52,352.42 = 20,940.78/x
3. Step 3: Cross multiply
   37,936.52x = 52,352.42 × 20,940.78
4. Step 4: Simplify right side
   37,936.52x = 1,096,300,509.69
5. Step 5: Solve for x
   x = 1,096,300,509.69/37,936.52
6. Step 6: Final answer
   x = 28,898.29