Finding the Fourth Proportional to 100.79, 151.17 and 32.31

Step by Step Solution

1. Step 1: Write the proportion equation
   100.79 : 151.17 = 32.31 : x
2. Step 2: Convert to fraction form
   100.79/151.17 = 32.31/x
3. Step 3: Cross multiply
   100.79x = 151.17 × 32.31
4. Step 4: Simplify right side
   100.79x = 4,884.30
5. Step 5: Solve for x
   x = 4,884.30/100.79
6. Step 6: Final answer
   x = 48.46