Finding the Fourth Proportional to 12,073.86, 18,110.42 and 8,150.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,073.86 : 18,110.42 = 8,150.90 : x
2. Step 2: Convert to fraction form
   12,073.86/18,110.42 = 8,150.90/x
3. Step 3: Cross multiply
   12,073.86x = 18,110.42 × 8,150.90
4. Step 4: Simplify right side
   12,073.86x = 147,616,222.38
5. Step 5: Solve for x
   x = 147,616,222.38/12,073.86
6. Step 6: Final answer
   x = 12,226.10