Finding the Fourth Proportional to 18,547.32, 25,590.72 and 10,995.42

Step by Step Solution

1. Step 1: Write the proportion equation
   18,547.32 : 25,590.72 = 10,995.42 : x
2. Step 2: Convert to fraction form
   18,547.32/25,590.72 = 10,995.42/x
3. Step 3: Cross multiply
   18,547.32x = 25,590.72 × 10,995.42
4. Step 4: Simplify right side
   18,547.32x = 281,380,714.50
5. Step 5: Solve for x
   x = 281,380,714.50/18,547.32
6. Step 6: Final answer
   x = 15,170.96