Finding the Fourth Proportional to 139,677.93, 192,759.89 and 79,251.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,677.93 : 192,759.89 = 79,251.12 : x
2. Step 2: Convert to fraction form
   139,677.93/192,759.89 = 79,251.12/x
3. Step 3: Cross multiply
   139,677.93x = 192,759.89 × 79,251.12
4. Step 4: Simplify right side
   139,677.93x = 15,276,436,777.32
5. Step 5: Solve for x
   x = 15,276,436,777.32/139,677.93
6. Step 6: Final answer
   x = 109,369.01