Finding the Fourth Proportional to 92.76, 139.15 and 73.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92.76 : 139.15 = 73.50 : x
2. Step 2: Convert to fraction form
   92.76/139.15 = 73.50/x
3. Step 3: Cross multiply
   92.76x = 139.15 × 73.50
4. Step 4: Simplify right side
   92.76x = 10,227.53
5. Step 5: Solve for x
   x = 10,227.53/92.76
6. Step 6: Final answer
   x = 110.26