Finding the Fourth Proportional to 105,181.84, 145,150.74 and 67,456

Step by Step Solution

1. Step 1: Write the proportion equation
   105,181.84 : 145,150.74 = 67,456 : x
2. Step 2: Convert to fraction form
   105,181.84/145,150.74 = 67,456/x
3. Step 3: Cross multiply
   105,181.84x = 145,150.74 × 67,456
4. Step 4: Simplify right side
   105,181.84x = 9,791,288,317.44
5. Step 5: Solve for x
   x = 9,791,288,317.44/105,181.84
6. Step 6: Final answer
   x = 93,089.15