Finding the Fourth Proportional to 60,786.25, 83,929.46 and 39,288.71

Step by Step Solution

1. Step 1: Write the proportion equation
   60,786.25 : 83,929.46 = 39,288.71 : x
2. Step 2: Convert to fraction form
   60,786.25/83,929.46 = 39,288.71/x
3. Step 3: Cross multiply
   60,786.25x = 83,929.46 × 39,288.71
4. Step 4: Simplify right side
   60,786.25x = 3,297,480,227.78
5. Step 5: Solve for x
   x = 3,297,480,227.78/60,786.25
6. Step 6: Final answer
   x = 54,247.14