Finding the Fourth Proportional to 300,603.12, 414,838.56 and 164,642.79

Step by Step Solution

1. Step 1: Write the proportion equation
   300,603.12 : 414,838.56 = 164,642.79 : x
2. Step 2: Convert to fraction form
   300,603.12/414,838.56 = 164,642.79/x
3. Step 3: Cross multiply
   300,603.12x = 414,838.56 × 164,642.79
4. Step 4: Simplify right side
   300,603.12x = 68,300,177,917.98
5. Step 5: Solve for x
   x = 68,300,177,917.98/300,603.12
6. Step 6: Final answer
   x = 227,210.48