Finding the Fourth Proportional to 99.42, 149.13 and 35.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99.42 : 149.13 = 35.25 : x
2. Step 2: Convert to fraction form
   99.42/149.13 = 35.25/x
3. Step 3: Cross multiply
   99.42x = 149.13 × 35.25
4. Step 4: Simplify right side
   99.42x = 5,256.83
5. Step 5: Solve for x
   x = 5,256.83/99.42
6. Step 6: Final answer
   x = 52.88