Finding the Fourth Proportional to 89.90, 124.06 and 60.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89.90 : 124.06 = 60.82 : x
2. Step 2: Convert to fraction form
   89.90/124.06 = 60.82/x
3. Step 3: Cross multiply
   89.90x = 124.06 × 60.82
4. Step 4: Simplify right side
   89.90x = 7,545.33
5. Step 5: Solve for x
   x = 7,545.33/89.90
6. Step 6: Final answer
   x = 83.93