Finding the Fourth Proportional to 164,839, 227,479.24 and 89,387.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,839 : 227,479.24 = 89,387.50 : x
2. Step 2: Convert to fraction form
   164,839/227,479.24 = 89,387.50/x
3. Step 3: Cross multiply
   164,839x = 227,479.24 × 89,387.50
4. Step 4: Simplify right side
   164,839x = 20,333,800,565.50
5. Step 5: Solve for x
   x = 20,333,800,565.50/164,839
6. Step 6: Final answer
   x = 123,355.52