Finding the Fourth Proportional to 123.89, 185.72 and 93.37

Step by Step Solution

1. Step 1: Write the proportion equation
   123.89 : 185.72 = 93.37 : x
2. Step 2: Convert to fraction form
   123.89/185.72 = 93.37/x
3. Step 3: Cross multiply
   123.89x = 185.72 × 93.37
4. Step 4: Simplify right side
   123.89x = 17,339.75
5. Step 5: Solve for x
   x = 17,339.75/123.89
6. Step 6: Final answer
   x = 139.96