Finding the Fourth Proportional to 10,908.73, 16,364.91 and 3,892.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,908.73 : 16,364.91 = 3,892.78 : x
2. Step 2: Convert to fraction form
   10,908.73/16,364.91 = 3,892.78/x
3. Step 3: Cross multiply
   10,908.73x = 16,364.91 × 3,892.78
4. Step 4: Simplify right side
   10,908.73x = 63,704,994.35
5. Step 5: Solve for x
   x = 63,704,994.35/10,908.73
6. Step 6: Final answer
   x = 5,839.82