Finding the Fourth Proportional to 3,510.79, 5,250.69 and 3,123.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.79 : 5,250.69 = 3,123.52 : x
2. Step 2: Convert to fraction form
   3,510.79/5,250.69 = 3,123.52/x
3. Step 3: Cross multiply
   3,510.79x = 5,250.69 × 3,123.52
4. Step 4: Simplify right side
   3,510.79x = 16,400,622.10
5. Step 5: Solve for x
   x = 16,400,622.10/3,510.79
6. Step 6: Final answer
   x = 4,671.49