Finding the Fourth Proportional to 89,667.91, 123,606.51 and 73,724.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,667.91 : 123,606.51 = 73,724.68 : x
2. Step 2: Convert to fraction form
   89,667.91/123,606.51 = 73,724.68/x
3. Step 3: Cross multiply
   89,667.91x = 123,606.51 × 73,724.68
4. Step 4: Simplify right side
   89,667.91x = 9,112,850,273.71
5. Step 5: Solve for x
   x = 9,112,850,273.71/89,667.91
6. Step 6: Final answer
   x = 101,628.89