Finding the Fourth Proportional to 323,610.88, 485,065.68 and 165,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   323,610.88 : 485,065.68 = 165,622.72 : x
2. Step 2: Convert to fraction form
   323,610.88/485,065.68 = 165,622.72/x
3. Step 3: Cross multiply
   323,610.88x = 485,065.68 × 165,622.72
4. Step 4: Simplify right side
   323,610.88x = 80,337,897,300.25
5. Step 5: Solve for x
   x = 80,337,897,300.25/323,610.88
6. Step 6: Final answer
   x = 248,254.62