Finding the Fourth Proportional to 99.39, 149.10 and 35.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99.39 : 149.10 = 35.25 : x
2. Step 2: Convert to fraction form
   99.39/149.10 = 35.25/x
3. Step 3: Cross multiply
   99.39x = 149.10 × 35.25
4. Step 4: Simplify right side
   99.39x = 5,255.78
5. Step 5: Solve for x
   x = 5,255.78/99.39
6. Step 6: Final answer
   x = 52.88