Finding the Fourth Proportional to 10,879.14, 16,316.55 and 5,330.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,879.14 : 16,316.55 = 5,330.10 : x
2. Step 2: Convert to fraction form
   10,879.14/16,316.55 = 5,330.10/x
3. Step 3: Cross multiply
   10,879.14x = 16,316.55 × 5,330.10
4. Step 4: Simplify right side
   10,879.14x = 86,968,843.16
5. Step 5: Solve for x
   x = 86,968,843.16/10,879.14
6. Step 6: Final answer
   x = 7,994.09