Finding the Fourth Proportional to 123.75, 185.27 and 100.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123.75 : 185.27 = 100.47 : x
2. Step 2: Convert to fraction form
   123.75/185.27 = 100.47/x
3. Step 3: Cross multiply
   123.75x = 185.27 × 100.47
4. Step 4: Simplify right side
   123.75x = 18,614.33
5. Step 5: Solve for x
   x = 18,614.33/123.75
6. Step 6: Final answer
   x = 150.42