Finding the Fourth Proportional to 18,612.72, 27,923.78 and 5,465.09

Step by Step Solution

1. Step 1: Write the proportion equation
   18,612.72 : 27,923.78 = 5,465.09 : x
2. Step 2: Convert to fraction form
   18,612.72/27,923.78 = 5,465.09/x
3. Step 3: Cross multiply
   18,612.72x = 27,923.78 × 5,465.09
4. Step 4: Simplify right side
   18,612.72x = 152,606,054.31
5. Step 5: Solve for x
   x = 152,606,054.31/18,612.72
6. Step 6: Final answer
   x = 8,199.02