Finding the Fourth Proportional to 37,938.35, 52,354.01 and 20,942.55

Step by Step Solution

1. Step 1: Write the proportion equation
   37,938.35 : 52,354.01 = 20,942.55 : x
2. Step 2: Convert to fraction form
   37,938.35/52,354.01 = 20,942.55/x
3. Step 3: Cross multiply
   37,938.35x = 52,354.01 × 20,942.55
4. Step 4: Simplify right side
   37,938.35x = 1,096,426,524.48
5. Step 5: Solve for x
   x = 1,096,426,524.48/37,938.35
6. Step 6: Final answer
   x = 28,900.21