Finding the Fourth Proportional to 22,106, 30,506.29 and 12,170

Step by Step Solution

1. Step 1: Write the proportion equation
   22,106 : 30,506.29 = 12,170 : x
2. Step 2: Convert to fraction form
   22,106/30,506.29 = 12,170/x
3. Step 3: Cross multiply
   22,106x = 30,506.29 × 12,170
4. Step 4: Simplify right side
   22,106x = 371,261,549.30
5. Step 5: Solve for x
   x = 371,261,549.30/22,106
6. Step 6: Final answer
   x = 16,794.61