Finding the Fourth Proportional to 89.86, 123.96 and 60.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89.86 : 123.96 = 60.76 : x
2. Step 2: Convert to fraction form
   89.86/123.96 = 60.76/x
3. Step 3: Cross multiply
   89.86x = 123.96 × 60.76
4. Step 4: Simplify right side
   89.86x = 7,531.81
5. Step 5: Solve for x
   x = 7,531.81/89.86
6. Step 6: Final answer
   x = 83.82