Finding the Fourth Proportional to 16,978.83, 25,470.67 and 5,292.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.83 : 25,470.67 = 5,292.96 : x
2. Step 2: Convert to fraction form
   16,978.83/25,470.67 = 5,292.96/x
3. Step 3: Cross multiply
   16,978.83x = 25,470.67 × 5,292.96
4. Step 4: Simplify right side
   16,978.83x = 134,815,083.67
5. Step 5: Solve for x
   x = 134,815,083.67/16,978.83
6. Step 6: Final answer
   x = 7,940.19