Finding the Fourth Proportional to 12,309.79, 18,460.15 and 4,410.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309.79 : 18,460.15 = 4,410.16 : x
2. Step 2: Convert to fraction form
   12,309.79/18,460.15 = 4,410.16/x
3. Step 3: Cross multiply
   12,309.79x = 18,460.15 × 4,410.16
4. Step 4: Simplify right side
   12,309.79x = 81,412,286.59
5. Step 5: Solve for x
   x = 81,412,286.59/12,309.79
6. Step 6: Final answer
   x = 6,613.62