Finding the Fourth Proportional to 12,320.60, 18,480.72 and 8,362.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,320.60 : 18,480.72 = 8,362.04 : x
2. Step 2: Convert to fraction form
   12,320.60/18,480.72 = 8,362.04/x
3. Step 3: Cross multiply
   12,320.60x = 18,480.72 × 8,362.04
4. Step 4: Simplify right side
   12,320.60x = 154,536,519.87
5. Step 5: Solve for x
   x = 154,536,519.87/12,320.60
6. Step 6: Final answer
   x = 12,542.94