Finding the Fourth Proportional to 101.48, 139.98 and 73.88

Step by Step Solution

1. Step 1: Write the proportion equation
   101.48 : 139.98 = 73.88 : x
2. Step 2: Convert to fraction form
   101.48/139.98 = 73.88/x
3. Step 3: Cross multiply
   101.48x = 139.98 × 73.88
4. Step 4: Simplify right side
   101.48x = 10,341.72
5. Step 5: Solve for x
   x = 10,341.72/101.48
6. Step 6: Final answer
   x = 101.91