Finding the Fourth Proportional to 12,283.56, 16,951.71 and 6,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,283.56 : 16,951.71 = 6,978.06 : x
2. Step 2: Convert to fraction form
   12,283.56/16,951.71 = 6,978.06/x
3. Step 3: Cross multiply
   12,283.56x = 16,951.71 × 6,978.06
4. Step 4: Simplify right side
   12,283.56x = 118,290,049.48
5. Step 5: Solve for x
   x = 118,290,049.48/12,283.56
6. Step 6: Final answer
   x = 9,629.95