Finding the Fourth Proportional to 139,786.50, 192,923.60 and 83,197.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,786.50 : 192,923.60 = 83,197.88 : x
2. Step 2: Convert to fraction form
   139,786.50/192,923.60 = 83,197.88/x
3. Step 3: Cross multiply
   139,786.50x = 192,923.60 × 83,197.88
4. Step 4: Simplify right side
   139,786.50x = 16,050,833,141.36
5. Step 5: Solve for x
   x = 16,050,833,141.36/139,786.50
6. Step 6: Final answer
   x = 114,823.91