Finding the Fourth Proportional to 283.34, 425.06 and 100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   283.34 : 425.06 = 100.72 : x
2. Step 2: Convert to fraction form
   283.34/425.06 = 100.72/x
3. Step 3: Cross multiply
   283.34x = 425.06 × 100.72
4. Step 4: Simplify right side
   283.34x = 42,812.04
5. Step 5: Solve for x
   x = 42,812.04/283.34
6. Step 6: Final answer
   x = 151.10