Finding the Fourth Proportional to 11,081.05, 16,612.81 and 5,531.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.05 : 16,612.81 = 5,531.54 : x
2. Step 2: Convert to fraction form
   11,081.05/16,612.81 = 5,531.54/x
3. Step 3: Cross multiply
   11,081.05x = 16,612.81 × 5,531.54
4. Step 4: Simplify right side
   11,081.05x = 91,894,423.03
5. Step 5: Solve for x
   x = 91,894,423.03/11,081.05
6. Step 6: Final answer
   x = 8,292.93