Finding the Fourth Proportional to 11,015.59, 15,201.11 and 5,979.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,015.59 : 15,201.11 = 5,979.71 : x
2. Step 2: Convert to fraction form
   11,015.59/15,201.11 = 5,979.71/x
3. Step 3: Cross multiply
   11,015.59x = 15,201.11 × 5,979.71
4. Step 4: Simplify right side
   11,015.59x = 90,898,123.57
5. Step 5: Solve for x
   x = 90,898,123.57/11,015.59
6. Step 6: Final answer
   x = 8,251.77