Finding the Fourth Proportional to 10,095.78, 13,940.82 and 9,644.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,095.78 : 13,940.82 = 9,644.82 : x
2. Step 2: Convert to fraction form
   10,095.78/13,940.82 = 9,644.82/x
3. Step 3: Cross multiply
   10,095.78x = 13,940.82 × 9,644.82
4. Step 4: Simplify right side
   10,095.78x = 134,456,699.55
5. Step 5: Solve for x
   x = 134,456,699.55/10,095.78
6. Step 6: Final answer
   x = 13,318.11