Finding the Fourth Proportional to 101.33, 139.82 and 59.86

Step by Step Solution

1. Step 1: Write the proportion equation
   101.33 : 139.82 = 59.86 : x
2. Step 2: Convert to fraction form
   101.33/139.82 = 59.86/x
3. Step 3: Cross multiply
   101.33x = 139.82 × 59.86
4. Step 4: Simplify right side
   101.33x = 8,369.50
5. Step 5: Solve for x
   x = 8,369.50/101.33
6. Step 6: Final answer
   x = 82.60