Finding the Fourth Proportional to 262,896.59, 394,492.50 and 105,137.34

Step by Step Solution

1. Step 1: Write the proportion equation
   262,896.59 : 394,492.50 = 105,137.34 : x
2. Step 2: Convert to fraction form
   262,896.59/394,492.50 = 105,137.34/x
3. Step 3: Cross multiply
   262,896.59x = 394,492.50 × 105,137.34
4. Step 4: Simplify right side
   262,896.59x = 41,475,892,099.95
5. Step 5: Solve for x
   x = 41,475,892,099.95/262,896.59
6. Step 6: Final answer
   x = 157,765.05