Finding the Fourth Proportional to 94.52, 140.83 and 88.31

Step by Step Solution

1. Step 1: Write the proportion equation
   94.52 : 140.83 = 88.31 : x
2. Step 2: Convert to fraction form
   94.52/140.83 = 88.31/x
3. Step 3: Cross multiply
   94.52x = 140.83 × 88.31
4. Step 4: Simplify right side
   94.52x = 12,437.33
5. Step 5: Solve for x
   x = 12,437.33/94.52
6. Step 6: Final answer
   x = 131.58