Finding the Fourth Proportional to 85,196.68, 117,571.90 and 49,407.94

Step by Step Solution

1. Step 1: Write the proportion equation
   85,196.68 : 117,571.90 = 49,407.94 : x
2. Step 2: Convert to fraction form
   85,196.68/117,571.90 = 49,407.94/x
3. Step 3: Cross multiply
   85,196.68x = 117,571.90 × 49,407.94
4. Step 4: Simplify right side
   85,196.68x = 5,808,985,380.89
5. Step 5: Solve for x
   x = 5,808,985,380.89/85,196.68
6. Step 6: Final answer
   x = 68,183.24