Finding the Fourth Proportional to 71.82, 107.72 and 29.06

Step by Step Solution

1. Step 1: Write the proportion equation
   71.82 : 107.72 = 29.06 : x
2. Step 2: Convert to fraction form
   71.82/107.72 = 29.06/x
3. Step 3: Cross multiply
   71.82x = 107.72 × 29.06
4. Step 4: Simplify right side
   71.82x = 3,130.34
5. Step 5: Solve for x
   x = 3,130.34/71.82
6. Step 6: Final answer
   x = 43.59