Finding the Fourth Proportional to 99.82, 149.82 and 93.16

Step by Step Solution

1. Step 1: Write the proportion equation
   99.82 : 149.82 = 93.16 : x
2. Step 2: Convert to fraction form
   99.82/149.82 = 93.16/x
3. Step 3: Cross multiply
   99.82x = 149.82 × 93.16
4. Step 4: Simplify right side
   99.82x = 13,957.23
5. Step 5: Solve for x
   x = 13,957.23/99.82
6. Step 6: Final answer
   x = 139.82