Finding the Fourth Proportional to 300,867.48, 415,200.38 and 164,898.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,867.48 : 415,200.38 = 164,898.50 : x
2. Step 2: Convert to fraction form
   300,867.48/415,200.38 = 164,898.50/x
3. Step 3: Cross multiply
   300,867.48x = 415,200.38 × 164,898.50
4. Step 4: Simplify right side
   300,867.48x = 68,465,916,960.94
5. Step 5: Solve for x
   x = 68,465,916,960.94/300,867.48
6. Step 6: Final answer
   x = 227,561.71