Finding the Fourth Proportional to 94.72, 141.25 and 90.96

Step by Step Solution

1. Step 1: Write the proportion equation
   94.72 : 141.25 = 90.96 : x
2. Step 2: Convert to fraction form
   94.72/141.25 = 90.96/x
3. Step 3: Cross multiply
   94.72x = 141.25 × 90.96
4. Step 4: Simplify right side
   94.72x = 12,848.10
5. Step 5: Solve for x
   x = 12,848.10/94.72
6. Step 6: Final answer
   x = 135.64