Finding the Fourth Proportional to 123.56, 185.19 and 69.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123.56 : 185.19 = 69.50 : x
2. Step 2: Convert to fraction form
   123.56/185.19 = 69.50/x
3. Step 3: Cross multiply
   123.56x = 185.19 × 69.50
4. Step 4: Simplify right side
   123.56x = 12,870.71
5. Step 5: Solve for x
   x = 12,870.71/123.56
6. Step 6: Final answer
   x = 104.17