Finding the Fourth Proportional to 10,910.36, 16,364.61 and 4,334.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,910.36 : 16,364.61 = 4,334.78 : x
2. Step 2: Convert to fraction form
   10,910.36/16,364.61 = 4,334.78/x
3. Step 3: Cross multiply
   10,910.36x = 16,364.61 × 4,334.78
4. Step 4: Simplify right side
   10,910.36x = 70,936,902.31
5. Step 5: Solve for x
   x = 70,936,902.31/10,910.36
6. Step 6: Final answer
   x = 6,501.80