Finding the Fourth Proportional to 102.27, 152.50 and 99.37

Step by Step Solution

1. Step 1: Write the proportion equation
   102.27 : 152.50 = 99.37 : x
2. Step 2: Convert to fraction form
   102.27/152.50 = 99.37/x
3. Step 3: Cross multiply
   102.27x = 152.50 × 99.37
4. Step 4: Simplify right side
   102.27x = 15,153.93
5. Step 5: Solve for x
   x = 15,153.93/102.27
6. Step 6: Final answer
   x = 148.18