Finding the Fourth Proportional to 40,315.72, 55,616.34 and 34,717

Step by Step Solution

1. Step 1: Write the proportion equation
   40,315.72 : 55,616.34 = 34,717 : x
2. Step 2: Convert to fraction form
   40,315.72/55,616.34 = 34,717/x
3. Step 3: Cross multiply
   40,315.72x = 55,616.34 × 34,717
4. Step 4: Simplify right side
   40,315.72x = 1,930,832,475.78
5. Step 5: Solve for x
   x = 1,930,832,475.78/40,315.72
6. Step 6: Final answer
   x = 47,892.79