Finding the Fourth Proportional to 282.59, 423.95 and 100.00

Step by Step Solution

1. Step 1: Write the proportion equation
   282.59 : 423.95 = 100.00 : x
2. Step 2: Convert to fraction form
   282.59/423.95 = 100.00/x
3. Step 3: Cross multiply
   282.59x = 423.95 × 100.00
4. Step 4: Simplify right side
   282.59x = 42,392.38
5. Step 5: Solve for x
   x = 42,392.38/282.59
6. Step 6: Final answer
   x = 150.02