Finding the Fourth Proportional to 99.82, 149.76 and 69.46

Step by Step Solution

1. Step 1: Write the proportion equation
   99.82 : 149.76 = 69.46 : x
2. Step 2: Convert to fraction form
   99.82/149.76 = 69.46/x
3. Step 3: Cross multiply
   99.82x = 149.76 × 69.46
4. Step 4: Simplify right side
   99.82x = 10,402.33
5. Step 5: Solve for x
   x = 10,402.33/99.82
6. Step 6: Final answer
   x = 104.21