Finding the Fourth Proportional to 162,436.86, 243,652.46 and 67,717.89

Step by Step Solution

1. Step 1: Write the proportion equation
   162,436.86 : 243,652.46 = 67,717.89 : x
2. Step 2: Convert to fraction form
   162,436.86/243,652.46 = 67,717.89/x
3. Step 3: Cross multiply
   162,436.86x = 243,652.46 × 67,717.89
4. Step 4: Simplify right side
   162,436.86x = 16,499,630,145.92
5. Step 5: Solve for x
   x = 16,499,630,145.92/162,436.86
6. Step 6: Final answer
   x = 101,575.65