Finding the Fourth Proportional to 99.56, 149.39 and 34.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99.56 : 149.39 = 34.56 : x
2. Step 2: Convert to fraction form
   99.56/149.39 = 34.56/x
3. Step 3: Cross multiply
   99.56x = 149.39 × 34.56
4. Step 4: Simplify right side
   99.56x = 5,162.88
5. Step 5: Solve for x
   x = 5,162.88/99.56
6. Step 6: Final answer
   x = 51.86