Finding the Fourth Proportional to 35.91, 53.89 and 29.18

Step by Step Solution

1. Step 1: Write the proportion equation
   35.91 : 53.89 = 29.18 : x
2. Step 2: Convert to fraction form
   35.91/53.89 = 29.18/x
3. Step 3: Cross multiply
   35.91x = 53.89 × 29.18
4. Step 4: Simplify right side
   35.91x = 1,572.51
5. Step 5: Solve for x
   x = 1,572.51/35.91
6. Step 6: Final answer
   x = 43.79