Finding the Fourth Proportional to 12,141.78, 16,757.98 and 6,836.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,141.78 : 16,757.98 = 6,836.60 : x
2. Step 2: Convert to fraction form
   12,141.78/16,757.98 = 6,836.60/x
3. Step 3: Cross multiply
   12,141.78x = 16,757.98 × 6,836.60
4. Step 4: Simplify right side
   12,141.78x = 114,567,606.07
5. Step 5: Solve for x
   x = 114,567,606.07/12,141.78
6. Step 6: Final answer
   x = 9,435.82