Finding the Fourth Proportional to 99.94, 138.56 and 94.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99.94 : 138.56 = 94.48 : x
2. Step 2: Convert to fraction form
   99.94/138.56 = 94.48/x
3. Step 3: Cross multiply
   99.94x = 138.56 × 94.48
4. Step 4: Simplify right side
   99.94x = 13,091.15
5. Step 5: Solve for x
   x = 13,091.15/99.94
6. Step 6: Final answer
   x = 130.99