Finding the Fourth Proportional to 89,898.72, 134,164.52 and 79,934.46

Step by Step Solution

1. Step 1: Write the proportion equation
   89,898.72 : 134,164.52 = 79,934.46 : x
2. Step 2: Convert to fraction form
   89,898.72/134,164.52 = 79,934.46/x
3. Step 3: Cross multiply
   89,898.72x = 134,164.52 × 79,934.46
4. Step 4: Simplify right side
   89,898.72x = 10,724,368,057.69
5. Step 5: Solve for x
   x = 10,724,368,057.69/89,898.72
6. Step 6: Final answer
   x = 119,293.89