Finding the Fourth Proportional to 99.67, 149.55 and 38.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99.67 : 149.55 = 38.83 : x
2. Step 2: Convert to fraction form
   99.67/149.55 = 38.83/x
3. Step 3: Cross multiply
   99.67x = 149.55 × 38.83
4. Step 4: Simplify right side
   99.67x = 5,807.03
5. Step 5: Solve for x
   x = 5,807.03/99.67
6. Step 6: Final answer
   x = 58.26