Finding the Fourth Proportional to 25,290.99, 37,944.59 and 12,144.29

Step by Step Solution

1. Step 1: Write the proportion equation
   25,290.99 : 37,944.59 = 12,144.29 : x
2. Step 2: Convert to fraction form
   25,290.99/37,944.59 = 12,144.29/x
3. Step 3: Cross multiply
   25,290.99x = 37,944.59 × 12,144.29
4. Step 4: Simplify right side
   25,290.99x = 460,809,854.45
5. Step 5: Solve for x
   x = 460,809,854.45/25,290.99
6. Step 6: Final answer
   x = 18,220.32