Finding the Fourth Proportional to 72.96, 109.98 and 69.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72.96 : 109.98 = 69.06 : x
2. Step 2: Convert to fraction form
   72.96/109.98 = 69.06/x
3. Step 3: Cross multiply
   72.96x = 109.98 × 69.06
4. Step 4: Simplify right side
   72.96x = 7,595.22
5. Step 5: Solve for x
   x = 7,595.22/72.96
6. Step 6: Final answer
   x = 104.10