Finding the Fourth Proportional to 99.84, 137.73 and 73.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99.84 : 137.73 = 73.56 : x
2. Step 2: Convert to fraction form
   99.84/137.73 = 73.56/x
3. Step 3: Cross multiply
   99.84x = 137.73 × 73.56
4. Step 4: Simplify right side
   99.84x = 10,131.42
5. Step 5: Solve for x
   x = 10,131.42/99.84
6. Step 6: Final answer
   x = 101.48