Finding the Fourth Proportional to 12,213.92, 18,323.31 and 5,193.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,213.92 : 18,323.31 = 5,193.89 : x
2. Step 2: Convert to fraction form
   12,213.92/18,323.31 = 5,193.89/x
3. Step 3: Cross multiply
   12,213.92x = 18,323.31 × 5,193.89
4. Step 4: Simplify right side
   12,213.92x = 95,169,164.96
5. Step 5: Solve for x
   x = 95,169,164.96/12,213.92
6. Step 6: Final answer
   x = 7,791.86