Finding the Fourth Proportional to 172,586.05, 258,773.37 and 67,282

Step by Step Solution

1. Step 1: Write the proportion equation
   172,586.05 : 258,773.37 = 67,282 : x
2. Step 2: Convert to fraction form
   172,586.05/258,773.37 = 67,282/x
3. Step 3: Cross multiply
   172,586.05x = 258,773.37 × 67,282
4. Step 4: Simplify right side
   172,586.05x = 17,410,789,880.34
5. Step 5: Solve for x
   x = 17,410,789,880.34/172,586.05
6. Step 6: Final answer
   x = 100,881.79