Finding the Fourth Proportional to 3,510.48, 5,250.22 and 3,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.48 : 5,250.22 = 3,123.20 : x
2. Step 2: Convert to fraction form
   3,510.48/5,250.22 = 3,123.20/x
3. Step 3: Cross multiply
   3,510.48x = 5,250.22 × 3,123.20
4. Step 4: Simplify right side
   3,510.48x = 16,397,460.85
5. Step 5: Solve for x
   x = 16,397,460.85/3,510.48
6. Step 6: Final answer
   x = 4,671.01