Finding the Fourth Proportional to 7,940.48, 10,965.24 and 5,112.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,940.48 : 10,965.24 = 5,112.76 : x
2. Step 2: Convert to fraction form
   7,940.48/10,965.24 = 5,112.76/x
3. Step 3: Cross multiply
   7,940.48x = 10,965.24 × 5,112.76
4. Step 4: Simplify right side
   7,940.48x = 56,062,640.46
5. Step 5: Solve for x
   x = 56,062,640.46/7,940.48
6. Step 6: Final answer
   x = 7,060.36