Finding the Fourth Proportional to 11,016.48, 15,202.78 and 5,980.70

Step by Step Solution

1. Step 1: Write the proportion equation
   11,016.48 : 15,202.78 = 5,980.70 : x
2. Step 2: Convert to fraction form
   11,016.48/15,202.78 = 5,980.70/x
3. Step 3: Cross multiply
   11,016.48x = 15,202.78 × 5,980.70
4. Step 4: Simplify right side
   11,016.48x = 90,923,266.35
5. Step 5: Solve for x
   x = 90,923,266.35/11,016.48
6. Step 6: Final answer
   x = 8,253.39