Finding the Fourth Proportional to 71,834.29, 99,133.57 and 39,571.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,834.29 : 99,133.57 = 39,571.25 : x
2. Step 2: Convert to fraction form
   71,834.29/99,133.57 = 39,571.25/x
3. Step 3: Cross multiply
   71,834.29x = 99,133.57 × 39,571.25
4. Step 4: Simplify right side
   71,834.29x = 3,922,838,835.66
5. Step 5: Solve for x
   x = 3,922,838,835.66/71,834.29
6. Step 6: Final answer
   x = 54,609.56