Finding the Fourth Proportional to 9,168.82, 12,649.54 and 5,392.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,168.82 : 12,649.54 = 5,392.18 : x
2. Step 2: Convert to fraction form
   9,168.82/12,649.54 = 5,392.18/x
3. Step 3: Cross multiply
   9,168.82x = 12,649.54 × 5,392.18
4. Step 4: Simplify right side
   9,168.82x = 68,208,506.39
5. Step 5: Solve for x
   x = 68,208,506.39/9,168.82
6. Step 6: Final answer
   x = 7,439.18