Finding the Fourth Proportional to 99.89, 149.82 and 34.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99.89 : 149.82 = 34.88 : x
2. Step 2: Convert to fraction form
   99.89/149.82 = 34.88/x
3. Step 3: Cross multiply
   99.89x = 149.82 × 34.88
4. Step 4: Simplify right side
   99.89x = 5,224.97
5. Step 5: Solve for x
   x = 5,224.97/99.89
6. Step 6: Final answer
   x = 52.31