Finding the Fourth Proportional to 83.31, 125.01 and 83.06

Step by Step Solution

1. Step 1: Write the proportion equation
   83.31 : 125.01 = 83.06 : x
2. Step 2: Convert to fraction form
   83.31/125.01 = 83.06/x
3. Step 3: Cross multiply
   83.31x = 125.01 × 83.06
4. Step 4: Simplify right side
   83.31x = 10,382.71
5. Step 5: Solve for x
   x = 10,382.71/83.31
6. Step 6: Final answer
   x = 124.63