Finding the Fourth Proportional to 100.93, 139.27 and 59.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100.93 : 139.27 = 59.50 : x
2. Step 2: Convert to fraction form
   100.93/139.27 = 59.50/x
3. Step 3: Cross multiply
   100.93x = 139.27 × 59.50
4. Step 4: Simplify right side
   100.93x = 8,286.11
5. Step 5: Solve for x
   x = 8,286.11/100.93
6. Step 6: Final answer
   x = 82.10