Finding the Fourth Proportional to 99.75, 137.76 and 73.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99.75 : 137.76 = 73.83 : x
2. Step 2: Convert to fraction form
   99.75/137.76 = 73.83/x
3. Step 3: Cross multiply
   99.75x = 137.76 × 73.83
4. Step 4: Simplify right side
   99.75x = 10,170.82
5. Step 5: Solve for x
   x = 10,170.82/99.75
6. Step 6: Final answer
   x = 101.96