Finding the Fourth Proportional to 22,618.56, 31,213.62 and 12,682.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,618.56 : 31,213.62 = 12,682.56 : x
2. Step 2: Convert to fraction form
   22,618.56/31,213.62 = 12,682.56/x
3. Step 3: Cross multiply
   22,618.56x = 31,213.62 × 12,682.56
4. Step 4: Simplify right side
   22,618.56x = 395,868,608.47
5. Step 5: Solve for x
   x = 395,868,608.47/22,618.56
6. Step 6: Final answer
   x = 17,501.94