Finding the Fourth Proportional to 41,128.45, 57,711.05 and 41,128.45

Step by Step Solution

1. Step 1: Write the proportion equation
   41,128.45 : 57,711.05 = 41,128.45 : x
2. Step 2: Convert to fraction form
   41,128.45/57,711.05 = 41,128.45/x
3. Step 3: Cross multiply
   41,128.45x = 57,711.05 × 41,128.45
4. Step 4: Simplify right side
   41,128.45x = 2,373,566,034.37
5. Step 5: Solve for x
   x = 2,373,566,034.37/41,128.45
6. Step 6: Final answer
   x = 57,711.05