Finding the Fourth Proportional to 94.41, 141.72 and 72.69

Step by Step Solution

1. Step 1: Write the proportion equation
   94.41 : 141.72 = 72.69 : x
2. Step 2: Convert to fraction form
   94.41/141.72 = 72.69/x
3. Step 3: Cross multiply
   94.41x = 141.72 × 72.69
4. Step 4: Simplify right side
   94.41x = 10,301.63
5. Step 5: Solve for x
   x = 10,301.63/94.41
6. Step 6: Final answer
   x = 109.12