Finding the Fourth Proportional to 18,108.72, 27,168.32 and 7,573.30

Step by Step Solution

1. Step 1: Write the proportion equation
   18,108.72 : 27,168.32 = 7,573.30 : x
2. Step 2: Convert to fraction form
   18,108.72/27,168.32 = 7,573.30/x
3. Step 3: Cross multiply
   18,108.72x = 27,168.32 × 7,573.30
4. Step 4: Simplify right side
   18,108.72x = 205,753,837.86
5. Step 5: Solve for x
   x = 205,753,837.86/18,108.72
6. Step 6: Final answer
   x = 11,362.14