Finding the Fourth Proportional to 40,424.72, 60,705.24 and 26,408.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,424.72 : 60,705.24 = 26,408.72 : x
2. Step 2: Convert to fraction form
   40,424.72/60,705.24 = 26,408.72/x
3. Step 3: Cross multiply
   40,424.72x = 60,705.24 × 26,408.72
4. Step 4: Simplify right side
   40,424.72x = 1,603,147,685.69
5. Step 5: Solve for x
   x = 1,603,147,685.69/40,424.72
6. Step 6: Final answer
   x = 39,657.61