Finding the Fourth Proportional to 139,843.89, 192,982.81 and 76,180.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,843.89 : 192,982.81 = 76,180.32 : x
2. Step 2: Convert to fraction form
   139,843.89/192,982.81 = 76,180.32/x
3. Step 3: Cross multiply
   139,843.89x = 192,982.81 × 76,180.32
4. Step 4: Simplify right side
   139,843.89x = 14,701,492,220.30
5. Step 5: Solve for x
   x = 14,701,492,220.30/139,843.89
6. Step 6: Final answer
   x = 105,127.88