Finding the Fourth Proportional to 139.52, 208.32 and 123.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139.52 : 208.32 = 123.52 : x
2. Step 2: Convert to fraction form
   139.52/208.32 = 123.52/x
3. Step 3: Cross multiply
   139.52x = 208.32 × 123.52
4. Step 4: Simplify right side
   139.52x = 25,731.69
5. Step 5: Solve for x
   x = 25,731.69/139.52
6. Step 6: Final answer
   x = 184.43