Finding the Fourth Proportional to 22,987.47, 34,456.69 and 13,105.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,987.47 : 34,456.69 = 13,105.47 : x
2. Step 2: Convert to fraction form
   22,987.47/34,456.69 = 13,105.47/x
3. Step 3: Cross multiply
   22,987.47x = 34,456.69 × 13,105.47
4. Step 4: Simplify right side
   22,987.47x = 451,571,117.09
5. Step 5: Solve for x
   x = 451,571,117.09/22,987.47
6. Step 6: Final answer
   x = 19,644.23