Finding the Fourth Proportional to 22,469.93, 31,019.74 and 13,974.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,469.93 : 31,019.74 = 13,974.79 : x
2. Step 2: Convert to fraction form
   22,469.93/31,019.74 = 13,974.79/x
3. Step 3: Cross multiply
   22,469.93x = 31,019.74 × 13,974.79
4. Step 4: Simplify right side
   22,469.93x = 433,494,239.87
5. Step 5: Solve for x
   x = 433,494,239.87/22,469.93
6. Step 6: Final answer
   x = 19,292.19