Finding the Fourth Proportional to 9,164.82, 13,725.53 and 5,821.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,164.82 : 13,725.53 = 5,821.11 : x
2. Step 2: Convert to fraction form
   9,164.82/13,725.53 = 5,821.11/x
3. Step 3: Cross multiply
   9,164.82x = 13,725.53 × 5,821.11
4. Step 4: Simplify right side
   9,164.82x = 79,897,790.83
5. Step 5: Solve for x
   x = 79,897,790.83/9,164.82
6. Step 6: Final answer
   x = 8,717.88