Finding the Fourth Proportional to 6,738.89, 9,300.89 and 3,908.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,738.89 : 9,300.89 = 3,908.08 : x
2. Step 2: Convert to fraction form
   6,738.89/9,300.89 = 3,908.08/x
3. Step 3: Cross multiply
   6,738.89x = 9,300.89 × 3,908.08
4. Step 4: Simplify right side
   6,738.89x = 36,348,608.71
5. Step 5: Solve for x
   x = 36,348,608.71/6,738.89
6. Step 6: Final answer
   x = 5,393.85