Finding the Fourth Proportional to 70.76, 105.86 and 50.52

Step by Step Solution

1. Step 1: Write the proportion equation
   70.76 : 105.86 = 50.52 : x
2. Step 2: Convert to fraction form
   70.76/105.86 = 50.52/x
3. Step 3: Cross multiply
   70.76x = 105.86 × 50.52
4. Step 4: Simplify right side
   70.76x = 5,348.05
5. Step 5: Solve for x
   x = 5,348.05/70.76
6. Step 6: Final answer
   x = 75.58