Finding the Fourth Proportional to 282.80, 424.01 and 100.10

Step by Step Solution

1. Step 1: Write the proportion equation
   282.80 : 424.01 = 100.10 : x
2. Step 2: Convert to fraction form
   282.80/424.01 = 100.10/x
3. Step 3: Cross multiply
   282.80x = 424.01 × 100.10
4. Step 4: Simplify right side
   282.80x = 42,440.78
5. Step 5: Solve for x
   x = 42,440.78/282.80
6. Step 6: Final answer
   x = 150.08