Finding the Fourth Proportional to 123.30, 184.86 and 69.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123.30 : 184.86 = 69.18 : x
2. Step 2: Convert to fraction form
   123.30/184.86 = 69.18/x
3. Step 3: Cross multiply
   123.30x = 184.86 × 69.18
4. Step 4: Simplify right side
   123.30x = 12,788.61
5. Step 5: Solve for x
   x = 12,788.61/123.30
6. Step 6: Final answer
   x = 103.72