Finding the Fourth Proportional to 123.20, 184.72 and 69.02

Step by Step Solution

1. Step 1: Write the proportion equation
   123.20 : 184.72 = 69.02 : x
2. Step 2: Convert to fraction form
   123.20/184.72 = 69.02/x
3. Step 3: Cross multiply
   123.20x = 184.72 × 69.02
4. Step 4: Simplify right side
   123.20x = 12,749.37
5. Step 5: Solve for x
   x = 12,749.37/123.20
6. Step 6: Final answer
   x = 103.49