Finding the Fourth Proportional to 37,786.92, 52,142.73 and 21,872.34

Step by Step Solution

1. Step 1: Write the proportion equation
   37,786.92 : 52,142.73 = 21,872.34 : x
2. Step 2: Convert to fraction form
   37,786.92/52,142.73 = 21,872.34/x
3. Step 3: Cross multiply
   37,786.92x = 52,142.73 × 21,872.34
4. Step 4: Simplify right side
   37,786.92x = 1,140,483,519.09
5. Step 5: Solve for x
   x = 1,140,483,519.09/37,786.92
6. Step 6: Final answer
   x = 30,181.97