Finding the Fourth Proportional to 57,514.12, 78,945.41 and 51,085.96

Step by Step Solution

1. Step 1: Write the proportion equation
   57,514.12 : 78,945.41 = 51,085.96 : x
2. Step 2: Convert to fraction form
   57,514.12/78,945.41 = 51,085.96/x
3. Step 3: Cross multiply
   57,514.12x = 78,945.41 × 51,085.96
4. Step 4: Simplify right side
   57,514.12x = 4,033,002,057.44
5. Step 5: Solve for x
   x = 4,033,002,057.44/57,514.12
6. Step 6: Final answer
   x = 70,121.95