Finding the Fourth Proportional to 18,184.92, 25,069.59 and 12,870.42

Step by Step Solution

1. Step 1: Write the proportion equation
   18,184.92 : 25,069.59 = 12,870.42 : x
2. Step 2: Convert to fraction form
   18,184.92/25,069.59 = 12,870.42/x
3. Step 3: Cross multiply
   18,184.92x = 25,069.59 × 12,870.42
4. Step 4: Simplify right side
   18,184.92x = 322,656,152.53
5. Step 5: Solve for x
   x = 322,656,152.53/18,184.92
6. Step 6: Final answer
   x = 17,743.06