Finding the Fourth Proportional to 139.56, 192.82 and 134.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139.56 : 192.82 = 134.52 : x
2. Step 2: Convert to fraction form
   139.56/192.82 = 134.52/x
3. Step 3: Cross multiply
   139.56x = 192.82 × 134.52
4. Step 4: Simplify right side
   139.56x = 25,938.15
5. Step 5: Solve for x
   x = 25,938.15/139.56
6. Step 6: Final answer
   x = 185.86