Finding the Fourth Proportional to 25,181.10, 37,728.45 and 12,005.10

Step by Step Solution

1. Step 1: Write the proportion equation
   25,181.10 : 37,728.45 = 12,005.10 : x
2. Step 2: Convert to fraction form
   25,181.10/37,728.45 = 12,005.10/x
3. Step 3: Cross multiply
   25,181.10x = 37,728.45 × 12,005.10
4. Step 4: Simplify right side
   25,181.10x = 452,933,815.10
5. Step 5: Solve for x
   x = 452,933,815.10/25,181.10
6. Step 6: Final answer
   x = 17,987.05