Finding the Fourth Proportional to 101.98, 153.17 and 65.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101.98 : 153.17 = 65.50 : x
2. Step 2: Convert to fraction form
   101.98/153.17 = 65.50/x
3. Step 3: Cross multiply
   101.98x = 153.17 × 65.50
4. Step 4: Simplify right side
   101.98x = 10,031.77
5. Step 5: Solve for x
   x = 10,031.77/101.98
6. Step 6: Final answer
   x = 98.37