Finding the Fourth Proportional to 22,061.92, 33,101.52 and 8,212

Step by Step Solution

1. Step 1: Write the proportion equation
   22,061.92 : 33,101.52 = 8,212 : x
2. Step 2: Convert to fraction form
   22,061.92/33,101.52 = 8,212/x
3. Step 3: Cross multiply
   22,061.92x = 33,101.52 × 8,212
4. Step 4: Simplify right side
   22,061.92x = 271,829,682.24
5. Step 5: Solve for x
   x = 271,829,682.24/22,061.92
6. Step 6: Final answer
   x = 12,321.22