Finding the Fourth Proportional to 139,812.96, 192,942.18 and 76,150.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,812.96 : 192,942.18 = 76,150.56 : x
2. Step 2: Convert to fraction form
   139,812.96/192,942.18 = 76,150.56/x
3. Step 3: Cross multiply
   139,812.96x = 192,942.18 × 76,150.56
4. Step 4: Simplify right side
   139,812.96x = 14,692,655,054.62
5. Step 5: Solve for x
   x = 14,692,655,054.62/139,812.96
6. Step 6: Final answer
   x = 105,087.93