Finding the Fourth Proportional to 20,766.27, 31,153.06 and 8,927.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,766.27 : 31,153.06 = 8,927.31 : x
2. Step 2: Convert to fraction form
   20,766.27/31,153.06 = 8,927.31/x
3. Step 3: Cross multiply
   20,766.27x = 31,153.06 × 8,927.31
4. Step 4: Simplify right side
   20,766.27x = 278,113,101.84
5. Step 5: Solve for x
   x = 278,113,101.84/20,766.27
6. Step 6: Final answer
   x = 13,392.54