Finding the Fourth Proportional to 301,412.88, 415,947.83 and 165,443.31

Step by Step Solution

1. Step 1: Write the proportion equation
   301,412.88 : 415,947.83 = 165,443.31 : x
2. Step 2: Convert to fraction form
   301,412.88/415,947.83 = 165,443.31/x
3. Step 3: Cross multiply
   301,412.88x = 415,947.83 × 165,443.31
4. Step 4: Simplify right side
   301,412.88x = 68,815,784,955.30
5. Step 5: Solve for x
   x = 68,815,784,955.30/301,412.88
6. Step 6: Final answer
   x = 228,310.70