Finding the Fourth Proportional to 53.10, 78.82 and 50.94

Step by Step Solution

1. Step 1: Write the proportion equation
   53.10 : 78.82 = 50.94 : x
2. Step 2: Convert to fraction form
   53.10/78.82 = 50.94/x
3. Step 3: Cross multiply
   53.10x = 78.82 × 50.94
4. Step 4: Simplify right side
   53.10x = 4,015.09
5. Step 5: Solve for x
   x = 4,015.09/53.10
6. Step 6: Final answer
   x = 75.61