Finding the Fourth Proportional to 9,208.42, 12,707.85 and 5,673.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,208.42 : 12,707.85 = 5,673.94 : x
2. Step 2: Convert to fraction form
   9,208.42/12,707.85 = 5,673.94/x
3. Step 3: Cross multiply
   9,208.42x = 12,707.85 × 5,673.94
4. Step 4: Simplify right side
   9,208.42x = 72,103,578.43
5. Step 5: Solve for x
   x = 72,103,578.43/9,208.42
6. Step 6: Final answer
   x = 7,830.18