Finding the Fourth Proportional to 12,206.42, 16,846.66 and 7,730.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,206.42 : 16,846.66 = 7,730.59 : x
2. Step 2: Convert to fraction form
   12,206.42/16,846.66 = 7,730.59/x
3. Step 3: Cross multiply
   12,206.42x = 16,846.66 × 7,730.59
4. Step 4: Simplify right side
   12,206.42x = 130,234,559.89
5. Step 5: Solve for x
   x = 130,234,559.89/12,206.42
6. Step 6: Final answer
   x = 10,669.35