Finding the Fourth Proportional to 164,663.31, 227,235.58 and 89,211.81

Step by Step Solution

1. Step 1: Write the proportion equation
   164,663.31 : 227,235.58 = 89,211.81 : x
2. Step 2: Convert to fraction form
   164,663.31/227,235.58 = 89,211.81/x
3. Step 3: Cross multiply
   164,663.31x = 227,235.58 × 89,211.81
4. Step 4: Simplify right side
   164,663.31x = 20,272,097,388.20
5. Step 5: Solve for x
   x = 20,272,097,388.20/164,663.31
6. Step 6: Final answer
   x = 123,112.41