Finding the Fourth Proportional to 12,078.96, 18,105.48 and 5,910

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078.96 : 18,105.48 = 5,910 : x
2. Step 2: Convert to fraction form
   12,078.96/18,105.48 = 5,910/x
3. Step 3: Cross multiply
   12,078.96x = 18,105.48 × 5,910
4. Step 4: Simplify right side
   12,078.96x = 107,003,386.80
5. Step 5: Solve for x
   x = 107,003,386.80/12,078.96
6. Step 6: Final answer
   x = 8,858.66