Finding the Fourth Proportional to 58,545.76, 80,772.72 and 40,636

Step by Step Solution

1. Step 1: Write the proportion equation
   58,545.76 : 80,772.72 = 40,636 : x
2. Step 2: Convert to fraction form
   58,545.76/80,772.72 = 40,636/x
3. Step 3: Cross multiply
   58,545.76x = 80,772.72 × 40,636
4. Step 4: Simplify right side
   58,545.76x = 3,282,280,249.92
5. Step 5: Solve for x
   x = 3,282,280,249.92/58,545.76
6. Step 6: Final answer
   x = 56,063.50