Finding the Fourth Proportional to 36,892.86, 50,911.91 and 20,977.31

Step by Step Solution

1. Step 1: Write the proportion equation
   36,892.86 : 50,911.91 = 20,977.31 : x
2. Step 2: Convert to fraction form
   36,892.86/50,911.91 = 20,977.31/x
3. Step 3: Cross multiply
   36,892.86x = 50,911.91 × 20,977.31
4. Step 4: Simplify right side
   36,892.86x = 1,067,995,137.82
5. Step 5: Solve for x
   x = 1,067,995,137.82/36,892.86
6. Step 6: Final answer
   x = 28,948.56