Finding the Fourth Proportional to 93.01, 139.24 and 72.42

Step by Step Solution

1. Step 1: Write the proportion equation
   93.01 : 139.24 = 72.42 : x
2. Step 2: Convert to fraction form
   93.01/139.24 = 72.42/x
3. Step 3: Cross multiply
   93.01x = 139.24 × 72.42
4. Step 4: Simplify right side
   93.01x = 10,083.76
5. Step 5: Solve for x
   x = 10,083.76/93.01
6. Step 6: Final answer
   x = 108.42