Finding the Fourth Proportional to 8,809.89, 13,205.88 and 5,525.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.89 : 13,205.88 = 5,525.27 : x
2. Step 2: Convert to fraction form
   8,809.89/13,205.88 = 5,525.27/x
3. Step 3: Cross multiply
   8,809.89x = 13,205.88 × 5,525.27
4. Step 4: Simplify right side
   8,809.89x = 72,966,085.60
5. Step 5: Solve for x
   x = 72,966,085.60/8,809.89
6. Step 6: Final answer
   x = 8,282.29