Finding the Fourth Proportional to 22,469.74, 31,005.74 and 13,036.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,469.74 : 31,005.74 = 13,036.48 : x
2. Step 2: Convert to fraction form
   22,469.74/31,005.74 = 13,036.48/x
3. Step 3: Cross multiply
   22,469.74x = 31,005.74 × 13,036.48
4. Step 4: Simplify right side
   22,469.74x = 404,205,709.40
5. Step 5: Solve for x
   x = 404,205,709.40/22,469.74
6. Step 6: Final answer
   x = 17,988.89