Finding the Fourth Proportional to 100.49, 150.71 and 39.59

Step by Step Solution

1. Step 1: Write the proportion equation
   100.49 : 150.71 = 39.59 : x
2. Step 2: Convert to fraction form
   100.49/150.71 = 39.59/x
3. Step 3: Cross multiply
   100.49x = 150.71 × 39.59
4. Step 4: Simplify right side
   100.49x = 5,966.45
5. Step 5: Solve for x
   x = 5,966.45/100.49
6. Step 6: Final answer
   x = 59.37