Finding the Fourth Proportional to 123.37, 185.00 and 42.19

Step by Step Solution

1. Step 1: Write the proportion equation
   123.37 : 185.00 = 42.19 : x
2. Step 2: Convert to fraction form
   123.37/185.00 = 42.19/x
3. Step 3: Cross multiply
   123.37x = 185.00 × 42.19
4. Step 4: Simplify right side
   123.37x = 7,804.71
5. Step 5: Solve for x
   x = 7,804.71/123.37
6. Step 6: Final answer
   x = 63.26