Finding the Fourth Proportional to 150,106.24, 207,112.69 and 89,665.05

Step by Step Solution

1. Step 1: Write the proportion equation
   150,106.24 : 207,112.69 = 89,665.05 : x
2. Step 2: Convert to fraction form
   150,106.24/207,112.69 = 89,665.05/x
3. Step 3: Cross multiply
   150,106.24x = 207,112.69 × 89,665.05
4. Step 4: Simplify right side
   150,106.24x = 18,570,769,186.70
5. Step 5: Solve for x
   x = 18,570,769,186.70/150,106.24
6. Step 6: Final answer
   x = 123,717.51