Finding the Fourth Proportional to 22,212.81, 33,308.28 and 8,162.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,212.81 : 33,308.28 = 8,162.91 : x
2. Step 2: Convert to fraction form
   22,212.81/33,308.28 = 8,162.91/x
3. Step 3: Cross multiply
   22,212.81x = 33,308.28 × 8,162.91
4. Step 4: Simplify right side
   22,212.81x = 271,892,491.89
5. Step 5: Solve for x
   x = 271,892,491.89/22,212.81
6. Step 6: Final answer
   x = 12,240.35