Finding the Fourth Proportional to 90.48, 124.82 and 59.39

Step by Step Solution

1. Step 1: Write the proportion equation
   90.48 : 124.82 = 59.39 : x
2. Step 2: Convert to fraction form
   90.48/124.82 = 59.39/x
3. Step 3: Cross multiply
   90.48x = 124.82 × 59.39
4. Step 4: Simplify right side
   90.48x = 7,412.83
5. Step 5: Solve for x
   x = 7,412.83/90.48
6. Step 6: Final answer
   x = 81.92