Finding the Fourth Proportional to 11,016.30, 15,202.61 and 5,980.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,016.30 : 15,202.61 = 5,980.57 : x
2. Step 2: Convert to fraction form
   11,016.30/15,202.61 = 5,980.57/x
3. Step 3: Cross multiply
   11,016.30x = 15,202.61 × 5,980.57
4. Step 4: Simplify right side
   11,016.30x = 90,920,250.23
5. Step 5: Solve for x
   x = 90,920,250.23/11,016.30
6. Step 6: Final answer
   x = 8,253.25