Finding the Fourth Proportional to 94.96, 142.31 and 72.06

Step by Step Solution

1. Step 1: Write the proportion equation
   94.96 : 142.31 = 72.06 : x
2. Step 2: Convert to fraction form
   94.96/142.31 = 72.06/x
3. Step 3: Cross multiply
   94.96x = 142.31 × 72.06
4. Step 4: Simplify right side
   94.96x = 10,254.50
5. Step 5: Solve for x
   x = 10,254.50/94.96
6. Step 6: Final answer
   x = 107.99