Finding the Fourth Proportional to 73,165.72, 109,765.88 and 26,419

Step by Step Solution

1. Step 1: Write the proportion equation
   73,165.72 : 109,765.88 = 26,419 : x
2. Step 2: Convert to fraction form
   73,165.72/109,765.88 = 26,419/x
3. Step 3: Cross multiply
   73,165.72x = 109,765.88 × 26,419
4. Step 4: Simplify right side
   73,165.72x = 2,899,904,783.72
5. Step 5: Solve for x
   x = 2,899,904,783.72/73,165.72
6. Step 6: Final answer
   x = 39,634.75