Finding the Fourth Proportional to 11,105.40, 16,662.96 and 5,910

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.40 : 16,662.96 = 5,910 : x
2. Step 2: Convert to fraction form
   11,105.40/16,662.96 = 5,910/x
3. Step 3: Cross multiply
   11,105.40x = 16,662.96 × 5,910
4. Step 4: Simplify right side
   11,105.40x = 98,478,093.60
5. Step 5: Solve for x
   x = 98,478,093.60/11,105.40
6. Step 6: Final answer
   x = 8,867.59