Finding the Fourth Proportional to 139,622.78, 192,673.82 and 75,960.84

Step by Step Solution

1. Step 1: Write the proportion equation
   139,622.78 : 192,673.82 = 75,960.84 : x
2. Step 2: Convert to fraction form
   139,622.78/192,673.82 = 75,960.84/x
3. Step 3: Cross multiply
   139,622.78x = 192,673.82 × 75,960.84
4. Step 4: Simplify right side
   139,622.78x = 14,635,665,213.21
5. Step 5: Solve for x
   x = 14,635,665,213.21/139,622.78
6. Step 6: Final answer
   x = 104,822.90