Finding the Fourth Proportional to 85,471, 117,949.69 and 47,229.48

Step by Step Solution

1. Step 1: Write the proportion equation
   85,471 : 117,949.69 = 47,229.48 : x
2. Step 2: Convert to fraction form
   85,471/117,949.69 = 47,229.48/x
3. Step 3: Cross multiply
   85,471x = 117,949.69 × 47,229.48
4. Step 4: Simplify right side
   85,471x = 5,570,702,524.86
5. Step 5: Solve for x
   x = 5,570,702,524.86/85,471
6. Step 6: Final answer
   x = 65,176.52