Finding the Fourth Proportional to 12,283.29, 16,951.82 and 6,978.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,283.29 : 16,951.82 = 6,978.51 : x
2. Step 2: Convert to fraction form
   12,283.29/16,951.82 = 6,978.51/x
3. Step 3: Cross multiply
   12,283.29x = 16,951.82 × 6,978.51
4. Step 4: Simplify right side
   12,283.29x = 118,298,410.50
5. Step 5: Solve for x
   x = 118,298,410.50/12,283.29
6. Step 6: Final answer
   x = 9,630.84