Finding the Fourth Proportional to 25,648.45, 35,410.91 and 19,668.62

Step by Step Solution

1. Step 1: Write the proportion equation
   25,648.45 : 35,410.91 = 19,668.62 : x
2. Step 2: Convert to fraction form
   25,648.45/35,410.91 = 19,668.62/x
3. Step 3: Cross multiply
   25,648.45x = 35,410.91 × 19,668.62
4. Step 4: Simplify right side
   25,648.45x = 696,483,722.83
5. Step 5: Solve for x
   x = 696,483,722.83/25,648.45
6. Step 6: Final answer
   x = 27,155.01