Finding the Fourth Proportional to 225,978.32, 312,262.72 and 164,617.72

Step by Step Solution

1. Step 1: Write the proportion equation
   225,978.32 : 312,262.72 = 164,617.72 : x
2. Step 2: Convert to fraction form
   225,978.32/312,262.72 = 164,617.72/x
3. Step 3: Cross multiply
   225,978.32x = 312,262.72 × 164,617.72
4. Step 4: Simplify right side
   225,978.32x = 51,403,977,007.40
5. Step 5: Solve for x
   x = 51,403,977,007.40/225,978.32
6. Step 6: Final answer
   x = 227,473.05