Finding the Fourth Proportional to 91.98, 138.02 and 37.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91.98 : 138.02 = 37.16 : x
2. Step 2: Convert to fraction form
   91.98/138.02 = 37.16/x
3. Step 3: Cross multiply
   91.98x = 138.02 × 37.16
4. Step 4: Simplify right side
   91.98x = 5,128.82
5. Step 5: Solve for x
   x = 5,128.82/91.98
6. Step 6: Final answer
   x = 55.76