Finding the Fourth Proportional to 22,107, 30,507.67 and 12,171

Step by Step Solution

1. Step 1: Write the proportion equation
   22,107 : 30,507.67 = 12,171 : x
2. Step 2: Convert to fraction form
   22,107/30,507.67 = 12,171/x
3. Step 3: Cross multiply
   22,107x = 30,507.67 × 12,171
4. Step 4: Simplify right side
   22,107x = 371,308,851.57
5. Step 5: Solve for x
   x = 371,308,851.57/22,107
6. Step 6: Final answer
   x = 16,795.99