Finding the Fourth Proportional to 11,015.98, 15,202.06 and 5,980.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,015.98 : 15,202.06 = 5,980.20 : x
2. Step 2: Convert to fraction form
   11,015.98/15,202.06 = 5,980.20/x
3. Step 3: Cross multiply
   11,015.98x = 15,202.06 × 5,980.20
4. Step 4: Simplify right side
   11,015.98x = 90,911,359.21
5. Step 5: Solve for x
   x = 90,911,359.21/11,015.98
6. Step 6: Final answer
   x = 8,252.68