Finding the Fourth Proportional to 50,118.72, 69,006.24 and 40,718.40

Step by Step Solution

1. Step 1: Write the proportion equation
   50,118.72 : 69,006.24 = 40,718.40 : x
2. Step 2: Convert to fraction form
   50,118.72/69,006.24 = 40,718.40/x
3. Step 3: Cross multiply
   50,118.72x = 69,006.24 × 40,718.40
4. Step 4: Simplify right side
   50,118.72x = 2,809,823,682.82
5. Step 5: Solve for x
   x = 2,809,823,682.82/50,118.72
6. Step 6: Final answer
   x = 56,063.36