Finding the Fourth Proportional to 123.47, 185.04 and 105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   123.47 : 185.04 = 105.25 : x
2. Step 2: Convert to fraction form
   123.47/185.04 = 105.25/x
3. Step 3: Cross multiply
   123.47x = 185.04 × 105.25
4. Step 4: Simplify right side
   123.47x = 19,475.00
5. Step 5: Solve for x
   x = 19,475.00/123.47
6. Step 6: Final answer
   x = 157.73