Finding the Fourth Proportional to 190,860.54, 263,408.59 and 109,196.37

Step by Step Solution

1. Step 1: Write the proportion equation
   190,860.54 : 263,408.59 = 109,196.37 : x
2. Step 2: Convert to fraction form
   190,860.54/263,408.59 = 109,196.37/x
3. Step 3: Cross multiply
   190,860.54x = 263,408.59 × 109,196.37
4. Step 4: Simplify right side
   190,860.54x = 28,763,261,991.31
5. Step 5: Solve for x
   x = 28,763,261,991.31/190,860.54
6. Step 6: Final answer
   x = 150,703.03