Finding the Fourth Proportional to 37,738.50, 52,079.16 and 20,971.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,738.50 : 52,079.16 = 20,971.50 : x
2. Step 2: Convert to fraction form
   37,738.50/52,079.16 = 20,971.50/x
3. Step 3: Cross multiply
   37,738.50x = 52,079.16 × 20,971.50
4. Step 4: Simplify right side
   37,738.50x = 1,092,178,103.94
5. Step 5: Solve for x
   x = 1,092,178,103.94/37,738.50
6. Step 6: Final answer
   x = 28,940.69