Finding the Fourth Proportional to 78.98, 108.98 and 46.24

Step by Step Solution

1. Step 1: Write the proportion equation
   78.98 : 108.98 = 46.24 : x
2. Step 2: Convert to fraction form
   78.98/108.98 = 46.24/x
3. Step 3: Cross multiply
   78.98x = 108.98 × 46.24
4. Step 4: Simplify right side
   78.98x = 5,038.90
5. Step 5: Solve for x
   x = 5,038.90/78.98
6. Step 6: Final answer
   x = 63.80