Finding the Fourth Proportional to 8,081.07, 11,145.54 and 5,530.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.07 : 11,145.54 = 5,530.33 : x
2. Step 2: Convert to fraction form
   8,081.07/11,145.54 = 5,530.33/x
3. Step 3: Cross multiply
   8,081.07x = 11,145.54 × 5,530.33
4. Step 4: Simplify right side
   8,081.07x = 61,638,580.25
5. Step 5: Solve for x
   x = 61,638,580.25/8,081.07
6. Step 6: Final answer
   x = 7,627.53