Finding the Fourth Proportional to 22,556.34, 31,127.49 and 12,484.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,556.34 : 31,127.49 = 12,484.80 : x
2. Step 2: Convert to fraction form
   22,556.34/31,127.49 = 12,484.80/x
3. Step 3: Cross multiply
   22,556.34x = 31,127.49 × 12,484.80
4. Step 4: Simplify right side
   22,556.34x = 388,620,487.15
5. Step 5: Solve for x
   x = 388,620,487.15/22,556.34
6. Step 6: Final answer
   x = 17,228.88