Finding the Fourth Proportional to 139,769.06, 192,855.67 and 82,426.37

Step by Step Solution

1. Step 1: Write the proportion equation
   139,769.06 : 192,855.67 = 82,426.37 : x
2. Step 2: Convert to fraction form
   139,769.06/192,855.67 = 82,426.37/x
3. Step 3: Cross multiply
   139,769.06x = 192,855.67 × 82,426.37
4. Step 4: Simplify right side
   139,769.06x = 15,896,392,812.02
5. Step 5: Solve for x
   x = 15,896,392,812.02/139,769.06
6. Step 6: Final answer
   x = 113,733.27