Finding the Fourth Proportional to 139,685.82, 192,766.59 and 76,023.54

Step by Step Solution

1. Step 1: Write the proportion equation
   139,685.82 : 192,766.59 = 76,023.54 : x
2. Step 2: Convert to fraction form
   139,685.82/192,766.59 = 76,023.54/x
3. Step 3: Cross multiply
   139,685.82x = 192,766.59 × 76,023.54
4. Step 4: Simplify right side
   139,685.82x = 14,654,798,565.53
5. Step 5: Solve for x
   x = 14,654,798,565.53/139,685.82
6. Step 6: Final answer
   x = 104,912.57