Finding the Fourth Proportional to 10,747.40, 16,122.17 and 3,994.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,747.40 : 16,122.17 = 3,994.79 : x
2. Step 2: Convert to fraction form
   10,747.40/16,122.17 = 3,994.79/x
3. Step 3: Cross multiply
   10,747.40x = 16,122.17 × 3,994.79
4. Step 4: Simplify right side
   10,747.40x = 64,404,612.87
5. Step 5: Solve for x
   x = 64,404,612.87/10,747.40
6. Step 6: Final answer
   x = 5,992.58