Finding the Fourth Proportional to 95.52, 131.92 and 78.98

Step by Step Solution

1. Step 1: Write the proportion equation
   95.52 : 131.92 = 78.98 : x
2. Step 2: Convert to fraction form
   95.52/131.92 = 78.98/x
3. Step 3: Cross multiply
   95.52x = 131.92 × 78.98
4. Step 4: Simplify right side
   95.52x = 10,419.17
5. Step 5: Solve for x
   x = 10,419.17/95.52
6. Step 6: Final answer
   x = 109.08