Finding the Fourth Proportional to 196.10, 293.87 and 99.98

Step by Step Solution

1. Step 1: Write the proportion equation
   196.10 : 293.87 = 99.98 : x
2. Step 2: Convert to fraction form
   196.10/293.87 = 99.98/x
3. Step 3: Cross multiply
   196.10x = 293.87 × 99.98
4. Step 4: Simplify right side
   196.10x = 29,379.15
5. Step 5: Solve for x
   x = 29,379.15/196.10
6. Step 6: Final answer
   x = 149.82