Finding the Fourth Proportional to 82.31, 113.50 and 67.51

Step by Step Solution

1. Step 1: Write the proportion equation
   82.31 : 113.50 = 67.51 : x
2. Step 2: Convert to fraction form
   82.31/113.50 = 67.51/x
3. Step 3: Cross multiply
   82.31x = 113.50 × 67.51
4. Step 4: Simplify right side
   82.31x = 7,662.23
5. Step 5: Solve for x
   x = 7,662.23/82.31
6. Step 6: Final answer
   x = 93.09