Finding the Fourth Proportional to 131.37, 181.28 and 76.10

Step by Step Solution

1. Step 1: Write the proportion equation
   131.37 : 181.28 = 76.10 : x
2. Step 2: Convert to fraction form
   131.37/181.28 = 76.10/x
3. Step 3: Cross multiply
   131.37x = 181.28 × 76.10
4. Step 4: Simplify right side
   131.37x = 13,796.22
5. Step 5: Solve for x
   x = 13,796.22/131.37
6. Step 6: Final answer
   x = 105.02