Finding the Fourth Proportional to 139,150.45, 192,164.03 and 96,239.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,150.45 : 192,164.03 = 96,239.89 : x
2. Step 2: Convert to fraction form
   139,150.45/192,164.03 = 96,239.89/x
3. Step 3: Cross multiply
   139,150.45x = 192,164.03 × 96,239.89
4. Step 4: Simplify right side
   139,150.45x = 18,493,845,109.16
5. Step 5: Solve for x
   x = 18,493,845,109.16/139,150.45
6. Step 6: Final answer
   x = 132,905.39