Finding the Fourth Proportional to 22,544.48, 31,111.06 and 12,472.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,544.48 : 31,111.06 = 12,472.68 : x
2. Step 2: Convert to fraction form
   22,544.48/31,111.06 = 12,472.68/x
3. Step 3: Cross multiply
   22,544.48x = 31,111.06 × 12,472.68
4. Step 4: Simplify right side
   22,544.48x = 388,038,295.84
5. Step 5: Solve for x
   x = 388,038,295.84/22,544.48
6. Step 6: Final answer
   x = 17,212.12