Finding the Fourth Proportional to 36,881.31, 50,895.72 and 20,964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,881.31 : 50,895.72 = 20,964.72 : x
2. Step 2: Convert to fraction form
   36,881.31/50,895.72 = 20,964.72/x
3. Step 3: Cross multiply
   36,881.31x = 50,895.72 × 20,964.72
4. Step 4: Simplify right side
   36,881.31x = 1,067,014,519.00
5. Step 5: Solve for x
   x = 1,067,014,519.00/36,881.31
6. Step 6: Final answer
   x = 28,931.04