Finding the Fourth Proportional to 139.59, 192.56 and 116.37

Step by Step Solution

1. Step 1: Write the proportion equation
   139.59 : 192.56 = 116.37 : x
2. Step 2: Convert to fraction form
   139.59/192.56 = 116.37/x
3. Step 3: Cross multiply
   139.59x = 192.56 × 116.37
4. Step 4: Simplify right side
   139.59x = 22,407.63
5. Step 5: Solve for x
   x = 22,407.63/139.59
6. Step 6: Final answer
   x = 160.52