Finding the Fourth Proportional to 11,016.53, 15,202.80 and 5,980.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,016.53 : 15,202.80 = 5,980.74 : x
2. Step 2: Convert to fraction form
   11,016.53/15,202.80 = 5,980.74/x
3. Step 3: Cross multiply
   11,016.53x = 15,202.80 × 5,980.74
4. Step 4: Simplify right side
   11,016.53x = 90,923,994.07
5. Step 5: Solve for x
   x = 90,923,994.07/11,016.53
6. Step 6: Final answer
   x = 8,253.42