Finding the Fourth Proportional to 123.25, 184.82 and 42.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123.25 : 184.82 = 42.10 : x
2. Step 2: Convert to fraction form
   123.25/184.82 = 42.10/x
3. Step 3: Cross multiply
   123.25x = 184.82 × 42.10
4. Step 4: Simplify right side
   123.25x = 7,780.41
5. Step 5: Solve for x
   x = 7,780.41/123.25
6. Step 6: Final answer
   x = 63.13