Finding the Fourth Proportional to 25,769.40, 35,578.83 and 19,790.34

Step by Step Solution

1. Step 1: Write the proportion equation
   25,769.40 : 35,578.83 = 19,790.34 : x
2. Step 2: Convert to fraction form
   25,769.40/35,578.83 = 19,790.34/x
3. Step 3: Cross multiply
   25,769.40x = 35,578.83 × 19,790.34
4. Step 4: Simplify right side
   25,769.40x = 704,117,142.50
5. Step 5: Solve for x
   x = 704,117,142.50/25,769.40
6. Step 6: Final answer
   x = 27,323.77