Finding the Fourth Proportional to 83.91, 125.91 and 35.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83.91 : 125.91 = 35.82 : x
2. Step 2: Convert to fraction form
   83.91/125.91 = 35.82/x
3. Step 3: Cross multiply
   83.91x = 125.91 × 35.82
4. Step 4: Simplify right side
   83.91x = 4,510.10
5. Step 5: Solve for x
   x = 4,510.10/83.91
6. Step 6: Final answer
   x = 53.75