Finding the Fourth Proportional to 99.94, 137.69 and 74.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99.94 : 137.69 = 74.94 : x
2. Step 2: Convert to fraction form
   99.94/137.69 = 74.94/x
3. Step 3: Cross multiply
   99.94x = 137.69 × 74.94
4. Step 4: Simplify right side
   99.94x = 10,317.80
5. Step 5: Solve for x
   x = 10,317.80/99.94
6. Step 6: Final answer
   x = 103.24