Finding the Fourth Proportional to 300,900.18, 415,223.10 and 164,910.10

Step by Step Solution

1. Step 1: Write the proportion equation
   300,900.18 : 415,223.10 = 164,910.10 : x
2. Step 2: Convert to fraction form
   300,900.18/415,223.10 = 164,910.10/x
3. Step 3: Cross multiply
   300,900.18x = 415,223.10 × 164,910.10
4. Step 4: Simplify right side
   300,900.18x = 68,474,482,943.31
5. Step 5: Solve for x
   x = 68,474,482,943.31/300,900.18
6. Step 6: Final answer
   x = 227,565.44