Finding the Fourth Proportional to 245.15, 367.35 and 123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245.15 : 367.35 = 123.50 : x
2. Step 2: Convert to fraction form
   245.15/367.35 = 123.50/x
3. Step 3: Cross multiply
   245.15x = 367.35 × 123.50
4. Step 4: Simplify right side
   245.15x = 45,365.89
5. Step 5: Solve for x
   x = 45,365.89/245.15
6. Step 6: Final answer
   x = 185.06