Finding the Fourth Proportional to 81,453.97, 122,222.78 and 38,807.71

Step by Step Solution

1. Step 1: Write the proportion equation
   81,453.97 : 122,222.78 = 38,807.71 : x
2. Step 2: Convert to fraction form
   81,453.97/122,222.78 = 38,807.71/x
3. Step 3: Cross multiply
   81,453.97x = 122,222.78 × 38,807.71
4. Step 4: Simplify right side
   81,453.97x = 4,743,186,007.60
5. Step 5: Solve for x
   x = 4,743,186,007.60/81,453.97
6. Step 6: Final answer
   x = 58,231.49