Finding the Fourth Proportional to 20,883.14, 31,324.62 and 5,300.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,883.14 : 31,324.62 = 5,300.72 : x
2. Step 2: Convert to fraction form
   20,883.14/31,324.62 = 5,300.72/x
3. Step 3: Cross multiply
   20,883.14x = 31,324.62 × 5,300.72
4. Step 4: Simplify right side
   20,883.14x = 166,043,039.73
5. Step 5: Solve for x
   x = 166,043,039.73/20,883.14
6. Step 6: Final answer
   x = 7,951.06