Finding the Fourth Proportional to 164,840.22, 227,479.62 and 89,388.72

Step by Step Solution

1. Step 1: Write the proportion equation
   164,840.22 : 227,479.62 = 89,388.72 : x
2. Step 2: Convert to fraction form
   164,840.22/227,479.62 = 89,388.72/x
3. Step 3: Cross multiply
   164,840.22x = 227,479.62 × 89,388.72
4. Step 4: Simplify right side
   164,840.22x = 20,334,112,057.89
5. Step 5: Solve for x
   x = 20,334,112,057.89/164,840.22
6. Step 6: Final answer
   x = 123,356.50