Finding the Fourth Proportional to 60,786.87, 83,785.46 and 40,636.39

Step by Step Solution

1. Step 1: Write the proportion equation
   60,786.87 : 83,785.46 = 40,636.39 : x
2. Step 2: Convert to fraction form
   60,786.87/83,785.46 = 40,636.39/x
3. Step 3: Cross multiply
   60,786.87x = 83,785.46 × 40,636.39
4. Step 4: Simplify right side
   60,786.87x = 3,404,738,628.89
5. Step 5: Solve for x
   x = 3,404,738,628.89/60,786.87
6. Step 6: Final answer
   x = 56,011.09