Finding the Fourth Proportional to 10,910.86, 16,365.94 and 3,119.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,910.86 : 16,365.94 = 3,119.70 : x
2. Step 2: Convert to fraction form
   10,910.86/16,365.94 = 3,119.70/x
3. Step 3: Cross multiply
   10,910.86x = 16,365.94 × 3,119.70
4. Step 4: Simplify right side
   10,910.86x = 51,056,823.02
5. Step 5: Solve for x
   x = 51,056,823.02/10,910.86
6. Step 6: Final answer
   x = 4,679.45