Finding the Fourth Proportional to 33,977.33, 50,945.81 and 12,918.91

Step by Step Solution

1. Step 1: Write the proportion equation
   33,977.33 : 50,945.81 = 12,918.91 : x
2. Step 2: Convert to fraction form
   33,977.33/50,945.81 = 12,918.91/x
3. Step 3: Cross multiply
   33,977.33x = 50,945.81 × 12,918.91
4. Step 4: Simplify right side
   33,977.33x = 658,164,237.83
5. Step 5: Solve for x
   x = 658,164,237.83/33,977.33
6. Step 6: Final answer
   x = 19,370.69