Finding the Fourth Proportional to 22,628.42, 31,224.18 and 12,556.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,628.42 : 31,224.18 = 12,556.34 : x
2. Step 2: Convert to fraction form
   22,628.42/31,224.18 = 12,556.34/x
3. Step 3: Cross multiply
   22,628.42x = 31,224.18 × 12,556.34
4. Step 4: Simplify right side
   22,628.42x = 392,061,420.30
5. Step 5: Solve for x
   x = 392,061,420.30/22,628.42
6. Step 6: Final answer
   x = 17,326.06