Finding the Fourth Proportional to 72,590.26, 108,900.78 and 25,843

Step by Step Solution

1. Step 1: Write the proportion equation
   72,590.26 : 108,900.78 = 25,843 : x
2. Step 2: Convert to fraction form
   72,590.26/108,900.78 = 25,843/x
3. Step 3: Cross multiply
   72,590.26x = 108,900.78 × 25,843
4. Step 4: Simplify right side
   72,590.26x = 2,814,322,857.54
5. Step 5: Solve for x
   x = 2,814,322,857.54/72,590.26
6. Step 6: Final answer
   x = 38,769.98