Finding the Fourth Proportional to 83.34, 124.83 and 56.28

Step by Step Solution

1. Step 1: Write the proportion equation
   83.34 : 124.83 = 56.28 : x
2. Step 2: Convert to fraction form
   83.34/124.83 = 56.28/x
3. Step 3: Cross multiply
   83.34x = 124.83 × 56.28
4. Step 4: Simplify right side
   83.34x = 7,025.43
5. Step 5: Solve for x
   x = 7,025.43/83.34
6. Step 6: Final answer
   x = 84.30