Finding the Fourth Proportional to 11,015.61, 15,201.56 and 5,979.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,015.61 : 15,201.56 = 5,979.83 : x
2. Step 2: Convert to fraction form
   11,015.61/15,201.56 = 5,979.83/x
3. Step 3: Cross multiply
   11,015.61x = 15,201.56 × 5,979.83
4. Step 4: Simplify right side
   11,015.61x = 90,902,775.06
5. Step 5: Solve for x
   x = 90,902,775.06/11,015.61
6. Step 6: Final answer
   x = 8,252.18