Finding the Fourth Proportional to 22,906.64, 31,609.22 and 12,697.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,906.64 : 31,609.22 = 12,697.94 : x
2. Step 2: Convert to fraction form
   22,906.64/31,609.22 = 12,697.94/x
3. Step 3: Cross multiply
   22,906.64x = 31,609.22 × 12,697.94
4. Step 4: Simplify right side
   22,906.64x = 401,371,979.01
5. Step 5: Solve for x
   x = 401,371,979.01/22,906.64
6. Step 6: Final answer
   x = 17,522.08