Finding the Fourth Proportional to 9,222.21, 12,724.71 and 5,863.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,222.21 : 12,724.71 = 5,863.80 : x
2. Step 2: Convert to fraction form
   9,222.21/12,724.71 = 5,863.80/x
3. Step 3: Cross multiply
   9,222.21x = 12,724.71 × 5,863.80
4. Step 4: Simplify right side
   9,222.21x = 74,615,154.50
5. Step 5: Solve for x
   x = 74,615,154.50/9,222.21
6. Step 6: Final answer
   x = 8,090.81