Finding the Fourth Proportional to 113.82, 170.46 and 100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113.82 : 170.46 = 100.50 : x
2. Step 2: Convert to fraction form
   113.82/170.46 = 100.50/x
3. Step 3: Cross multiply
   113.82x = 170.46 × 100.50
4. Step 4: Simplify right side
   113.82x = 17,131.23
5. Step 5: Solve for x
   x = 17,131.23/113.82
6. Step 6: Final answer
   x = 150.51