Finding the Fourth Proportional to 11,673.91, 16,111.34 and 6,500.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,673.91 : 16,111.34 = 6,500.31 : x
2. Step 2: Convert to fraction form
   11,673.91/16,111.34 = 6,500.31/x
3. Step 3: Cross multiply
   11,673.91x = 16,111.34 × 6,500.31
4. Step 4: Simplify right side
   11,673.91x = 104,728,704.52
5. Step 5: Solve for x
   x = 104,728,704.52/11,673.91
6. Step 6: Final answer
   x = 8,971.18