Finding the Fourth Proportional to 99.69, 149.37 and 65.43

Step by Step Solution

1. Step 1: Write the proportion equation
   99.69 : 149.37 = 65.43 : x
2. Step 2: Convert to fraction form
   99.69/149.37 = 65.43/x
3. Step 3: Cross multiply
   99.69x = 149.37 × 65.43
4. Step 4: Simplify right side
   99.69x = 9,772.89
5. Step 5: Solve for x
   x = 9,772.89/99.69
6. Step 6: Final answer
   x = 98.03