Finding the Fourth Proportional to 78.84, 108.82 and 59.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78.84 : 108.82 = 59.48 : x
2. Step 2: Convert to fraction form
   78.84/108.82 = 59.48/x
3. Step 3: Cross multiply
   78.84x = 108.82 × 59.48
4. Step 4: Simplify right side
   78.84x = 6,472.61
5. Step 5: Solve for x
   x = 6,472.61/78.84
6. Step 6: Final answer
   x = 82.10