Finding the Fourth Proportional to 89,908.72, 134,179.42 and 79,944.46

Step by Step Solution

1. Step 1: Write the proportion equation
   89,908.72 : 134,179.42 = 79,944.46 : x
2. Step 2: Convert to fraction form
   89,908.72/134,179.42 = 79,944.46/x
3. Step 3: Cross multiply
   89,908.72x = 134,179.42 × 79,944.46
4. Step 4: Simplify right side
   89,908.72x = 10,726,901,275.01
5. Step 5: Solve for x
   x = 10,726,901,275.01/89,908.72
6. Step 6: Final answer
   x = 119,308.80