Finding the Fourth Proportional to 37,996.61, 57,004.76 and 20,212.63

Step by Step Solution

1. Step 1: Write the proportion equation
   37,996.61 : 57,004.76 = 20,212.63 : x
2. Step 2: Convert to fraction form
   37,996.61/57,004.76 = 20,212.63/x
3. Step 3: Cross multiply
   37,996.61x = 57,004.76 × 20,212.63
4. Step 4: Simplify right side
   37,996.61x = 1,152,215,878.54
5. Step 5: Solve for x
   x = 1,152,215,878.54/37,996.61
6. Step 6: Final answer
   x = 30,324.18