Finding the Fourth Proportional to 9,200.22, 13,729.63 and 8,216.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,200.22 : 13,729.63 = 8,216.02 : x
2. Step 2: Convert to fraction form
   9,200.22/13,729.63 = 8,216.02/x
3. Step 3: Cross multiply
   9,200.22x = 13,729.63 × 8,216.02
4. Step 4: Simplify right side
   9,200.22x = 112,802,914.67
5. Step 5: Solve for x
   x = 112,802,914.67/9,200.22
6. Step 6: Final answer
   x = 12,260.89