Finding the Fourth Proportional to 85,196.20, 117,570.76 and 49,406.97

Step by Step Solution

1. Step 1: Write the proportion equation
   85,196.20 : 117,570.76 = 49,406.97 : x
2. Step 2: Convert to fraction form
   85,196.20/117,570.76 = 49,406.97/x
3. Step 3: Cross multiply
   85,196.20x = 117,570.76 × 49,406.97
4. Step 4: Simplify right side
   85,196.20x = 5,808,814,447.79
5. Step 5: Solve for x
   x = 5,808,814,447.79/85,196.20
6. Step 6: Final answer
   x = 68,181.62