Finding the Fourth Proportional to 51,761.78, 71,426.32 and 30,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   51,761.78 : 71,426.32 = 30,256.56 : x
2. Step 2: Convert to fraction form
   51,761.78/71,426.32 = 30,256.56/x
3. Step 3: Cross multiply
   51,761.78x = 71,426.32 × 30,256.56
4. Step 4: Simplify right side
   51,761.78x = 2,161,114,661.02
5. Step 5: Solve for x
   x = 2,161,114,661.02/51,761.78
6. Step 6: Final answer
   x = 41,751.17