Finding the Fourth Proportional to 22,238.34, 30,689.73 and 12,166.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,238.34 : 30,689.73 = 12,166.17 : x
2. Step 2: Convert to fraction form
   22,238.34/30,689.73 = 12,166.17/x
3. Step 3: Cross multiply
   22,238.34x = 30,689.73 × 12,166.17
4. Step 4: Simplify right side
   22,238.34x = 373,376,472.43
5. Step 5: Solve for x
   x = 373,376,472.43/22,238.34
6. Step 6: Final answer
   x = 16,789.76