Finding the Fourth Proportional to 5,753.79, 7,935.57 and 3,864.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,753.79 : 7,935.57 = 3,864.78 : x
2. Step 2: Convert to fraction form
   5,753.79/7,935.57 = 3,864.78/x
3. Step 3: Cross multiply
   5,753.79x = 7,935.57 × 3,864.78
4. Step 4: Simplify right side
   5,753.79x = 30,669,232.22
5. Step 5: Solve for x
   x = 30,669,232.22/5,753.79
6. Step 6: Final answer
   x = 5,330.27