Finding the Fourth Proportional to 11,016.09, 15,201.79 and 5,980.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,016.09 : 15,201.79 = 5,980.20 : x
2. Step 2: Convert to fraction form
   11,016.09/15,201.79 = 5,980.20/x
3. Step 3: Cross multiply
   11,016.09x = 15,201.79 × 5,980.20
4. Step 4: Simplify right side
   11,016.09x = 90,909,744.56
5. Step 5: Solve for x
   x = 90,909,744.56/11,016.09
6. Step 6: Final answer
   x = 8,252.45