Finding the Fourth Proportional to 22,906.15, 31,611.39 and 12,834.67

Step by Step Solution

1. Step 1: Write the proportion equation
   22,906.15 : 31,611.39 = 12,834.67 : x
2. Step 2: Convert to fraction form
   22,906.15/31,611.39 = 12,834.67/x
3. Step 3: Cross multiply
   22,906.15x = 31,611.39 × 12,834.67
4. Step 4: Simplify right side
   22,906.15x = 405,721,758.89
5. Step 5: Solve for x
   x = 405,721,758.89/22,906.15
6. Step 6: Final answer
   x = 17,712.35