Finding the Fourth Proportional to 16,317.72, 24,478.70 and 5,227.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,317.72 : 24,478.70 = 5,227.79 : x
2. Step 2: Convert to fraction form
   16,317.72/24,478.70 = 5,227.79/x
3. Step 3: Cross multiply
   16,317.72x = 24,478.70 × 5,227.79
4. Step 4: Simplify right side
   16,317.72x = 127,969,354.54
5. Step 5: Solve for x
   x = 127,969,354.54/16,317.72
6. Step 6: Final answer
   x = 7,842.36