Finding the Fourth Proportional to 20,882.72, 31,325.18 and 5,300.48

Step by Step Solution

1. Step 1: Write the proportion equation
   20,882.72 : 31,325.18 = 5,300.48 : x
2. Step 2: Convert to fraction form
   20,882.72/31,325.18 = 5,300.48/x
3. Step 3: Cross multiply
   20,882.72x = 31,325.18 × 5,300.48
4. Step 4: Simplify right side
   20,882.72x = 166,038,490.09
5. Step 5: Solve for x
   x = 166,038,490.09/20,882.72
6. Step 6: Final answer
   x = 7,951.00