Finding the Fourth Proportional to 91.33, 137.01 and 43.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91.33 : 137.01 = 43.24 : x
2. Step 2: Convert to fraction form
   91.33/137.01 = 43.24/x
3. Step 3: Cross multiply
   91.33x = 137.01 × 43.24
4. Step 4: Simplify right side
   91.33x = 5,924.31
5. Step 5: Solve for x
   x = 5,924.31/91.33
6. Step 6: Final answer
   x = 64.87