Finding the Fourth Proportional to 83.22, 124.72 and 29.05

Step by Step Solution

1. Step 1: Write the proportion equation
   83.22 : 124.72 = 29.05 : x
2. Step 2: Convert to fraction form
   83.22/124.72 = 29.05/x
3. Step 3: Cross multiply
   83.22x = 124.72 × 29.05
4. Step 4: Simplify right side
   83.22x = 3,623.12
5. Step 5: Solve for x
   x = 3,623.12/83.22
6. Step 6: Final answer
   x = 43.54