Finding the Fourth Proportional to 101.35, 139.89 and 59.93

Step by Step Solution

1. Step 1: Write the proportion equation
   101.35 : 139.89 = 59.93 : x
2. Step 2: Convert to fraction form
   101.35/139.89 = 59.93/x
3. Step 3: Cross multiply
   101.35x = 139.89 × 59.93
4. Step 4: Simplify right side
   101.35x = 8,383.61
5. Step 5: Solve for x
   x = 8,383.61/101.35
6. Step 6: Final answer
   x = 82.72