Finding the Fourth Proportional to 72.86, 109.32 and 69.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72.86 : 109.32 = 69.41 : x
2. Step 2: Convert to fraction form
   72.86/109.32 = 69.41/x
3. Step 3: Cross multiply
   72.86x = 109.32 × 69.41
4. Step 4: Simplify right side
   72.86x = 7,587.90
5. Step 5: Solve for x
   x = 7,587.90/72.86
6. Step 6: Final answer
   x = 104.14