Finding the Fourth Proportional to 83.93, 115.78 and 48.96

Step by Step Solution

1. Step 1: Write the proportion equation
   83.93 : 115.78 = 48.96 : x
2. Step 2: Convert to fraction form
   83.93/115.78 = 48.96/x
3. Step 3: Cross multiply
   83.93x = 115.78 × 48.96
4. Step 4: Simplify right side
   83.93x = 5,667.77
5. Step 5: Solve for x
   x = 5,667.77/83.93
6. Step 6: Final answer
   x = 67.53