Finding the Fourth Proportional to 78.83, 108.78 and 46.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78.83 : 108.78 = 46.07 : x
2. Step 2: Convert to fraction form
   78.83/108.78 = 46.07/x
3. Step 3: Cross multiply
   78.83x = 108.78 × 46.07
4. Step 4: Simplify right side
   78.83x = 5,011.80
5. Step 5: Solve for x
   x = 5,011.80/78.83
6. Step 6: Final answer
   x = 63.58