Finding the Fourth Proportional to 18,150.10, 27,208.71 and 12,606.06

Step by Step Solution

1. Step 1: Write the proportion equation
   18,150.10 : 27,208.71 = 12,606.06 : x
2. Step 2: Convert to fraction form
   18,150.10/27,208.71 = 12,606.06/x
3. Step 3: Cross multiply
   18,150.10x = 27,208.71 × 12,606.06
4. Step 4: Simplify right side
   18,150.10x = 342,994,630.78
5. Step 5: Solve for x
   x = 342,994,630.78/18,150.10
6. Step 6: Final answer
   x = 18,897.67