Finding the Fourth Proportional to 123.83, 185.52 and 100.58

Step by Step Solution

1. Step 1: Write the proportion equation
   123.83 : 185.52 = 100.58 : x
2. Step 2: Convert to fraction form
   123.83/185.52 = 100.58/x
3. Step 3: Cross multiply
   123.83x = 185.52 × 100.58
4. Step 4: Simplify right side
   123.83x = 18,659.05
5. Step 5: Solve for x
   x = 18,659.05/123.83
6. Step 6: Final answer
   x = 150.68