Finding the Fourth Proportional to 69.50, 104.12 and 55.82

Step by Step Solution

1. Step 1: Write the proportion equation
   69.50 : 104.12 = 55.82 : x
2. Step 2: Convert to fraction form
   69.50/104.12 = 55.82/x
3. Step 3: Cross multiply
   69.50x = 104.12 × 55.82
4. Step 4: Simplify right side
   69.50x = 5,811.98
5. Step 5: Solve for x
   x = 5,811.98/69.50
6. Step 6: Final answer
   x = 83.63