Finding the Fourth Proportional to 12,212.67, 18,294.72 and 5,954.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,212.67 : 18,294.72 = 5,954.43 : x
2. Step 2: Convert to fraction form
   12,212.67/18,294.72 = 5,954.43/x
3. Step 3: Cross multiply
   12,212.67x = 18,294.72 × 5,954.43
4. Step 4: Simplify right side
   12,212.67x = 108,934,629.61
5. Step 5: Solve for x
   x = 108,934,629.61/12,212.67
6. Step 6: Final answer
   x = 8,919.80