Finding the Fourth Proportional to 71,786.52, 99,063.27 and 39,954.69

Step by Step Solution

1. Step 1: Write the proportion equation
   71,786.52 : 99,063.27 = 39,954.69 : x
2. Step 2: Convert to fraction form
   71,786.52/99,063.27 = 39,954.69/x
3. Step 3: Cross multiply
   71,786.52x = 99,063.27 × 39,954.69
4. Step 4: Simplify right side
   71,786.52x = 3,958,042,243.24
5. Step 5: Solve for x
   x = 3,958,042,243.24/71,786.52
6. Step 6: Final answer
   x = 55,136.29