Finding the Fourth Proportional to 12,150.92, 18,185.22 and 7,473.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.92 : 18,185.22 = 7,473.89 : x
2. Step 2: Convert to fraction form
   12,150.92/18,185.22 = 7,473.89/x
3. Step 3: Cross multiply
   12,150.92x = 18,185.22 × 7,473.89
4. Step 4: Simplify right side
   12,150.92x = 135,914,333.91
5. Step 5: Solve for x
   x = 135,914,333.91/12,150.92
6. Step 6: Final answer
   x = 11,185.52