Finding the Fourth Proportional to 37,938.54, 52,355.37 and 20,942.48

Step by Step Solution

1. Step 1: Write the proportion equation
   37,938.54 : 52,355.37 = 20,942.48 : x
2. Step 2: Convert to fraction form
   37,938.54/52,355.37 = 20,942.48/x
3. Step 3: Cross multiply
   37,938.54x = 52,355.37 × 20,942.48
4. Step 4: Simplify right side
   37,938.54x = 1,096,451,027.34
5. Step 5: Solve for x
   x = 1,096,451,027.34/37,938.54
6. Step 6: Final answer
   x = 28,900.72