Finding the Fourth Proportional to 139,729, 192,825.70 and 76,067.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,729 : 192,825.70 = 76,067.24 : x
2. Step 2: Convert to fraction form
   139,729/192,825.70 = 76,067.24/x
3. Step 3: Cross multiply
   139,729x = 192,825.70 × 76,067.24
4. Step 4: Simplify right side
   139,729x = 14,667,718,800.07
5. Step 5: Solve for x
   x = 14,667,718,800.07/139,729
6. Step 6: Final answer
   x = 104,972.62