Finding the Fourth Proportional to 91.23, 136.73 and 37.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91.23 : 136.73 = 37.16 : x
2. Step 2: Convert to fraction form
   91.23/136.73 = 37.16/x
3. Step 3: Cross multiply
   91.23x = 136.73 × 37.16
4. Step 4: Simplify right side
   91.23x = 5,080.89
5. Step 5: Solve for x
   x = 5,080.89/91.23
6. Step 6: Final answer
   x = 55.69