Finding the Fourth Proportional to 16,883.86, 25,317.83 and 9,865.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,883.86 : 25,317.83 = 9,865.89 : x
2. Step 2: Convert to fraction form
   16,883.86/25,317.83 = 9,865.89/x
3. Step 3: Cross multiply
   16,883.86x = 25,317.83 × 9,865.89
4. Step 4: Simplify right side
   16,883.86x = 249,783,095.91
5. Step 5: Solve for x
   x = 249,783,095.91/16,883.86
6. Step 6: Final answer
   x = 14,794.20