Finding the Fourth Proportional to 12,219.82, 16,863.29 and 6,630.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,219.82 : 16,863.29 = 6,630.82 : x
2. Step 2: Convert to fraction form
   12,219.82/16,863.29 = 6,630.82/x
3. Step 3: Cross multiply
   12,219.82x = 16,863.29 × 6,630.82
4. Step 4: Simplify right side
   12,219.82x = 111,817,390.15
5. Step 5: Solve for x
   x = 111,817,390.15/12,219.82
6. Step 6: Final answer
   x = 9,150.50