Finding the Fourth Proportional to 69.06, 103.60 and 48.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69.06 : 103.60 = 48.72 : x
2. Step 2: Convert to fraction form
   69.06/103.60 = 48.72/x
3. Step 3: Cross multiply
   69.06x = 103.60 × 48.72
4. Step 4: Simplify right side
   69.06x = 5,047.39
5. Step 5: Solve for x
   x = 5,047.39/69.06
6. Step 6: Final answer
   x = 73.09