Finding the Fourth Proportional to 83.01, 124.52 and 28.91

Step by Step Solution

1. Step 1: Write the proportion equation
   83.01 : 124.52 = 28.91 : x
2. Step 2: Convert to fraction form
   83.01/124.52 = 28.91/x
3. Step 3: Cross multiply
   83.01x = 124.52 × 28.91
4. Step 4: Simplify right side
   83.01x = 3,599.50
5. Step 5: Solve for x
   x = 3,599.50/83.01
6. Step 6: Final answer
   x = 43.36