Finding the Fourth Proportional to 83.42, 125.12 and 32.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83.42 : 125.12 = 32.10 : x
2. Step 2: Convert to fraction form
   83.42/125.12 = 32.10/x
3. Step 3: Cross multiply
   83.42x = 125.12 × 32.10
4. Step 4: Simplify right side
   83.42x = 4,016.35
5. Step 5: Solve for x
   x = 4,016.35/83.42
6. Step 6: Final answer
   x = 48.15