Finding the Fourth Proportional to 5,152.33, 7,725.90 and 2,520.03

Step by Step Solution

1. Step 1: Write the proportion equation
   5,152.33 : 7,725.90 = 2,520.03 : x
2. Step 2: Convert to fraction form
   5,152.33/7,725.90 = 2,520.03/x
3. Step 3: Cross multiply
   5,152.33x = 7,725.90 × 2,520.03
4. Step 4: Simplify right side
   5,152.33x = 19,469,499.78
5. Step 5: Solve for x
   x = 19,469,499.78/5,152.33
6. Step 6: Final answer
   x = 3,778.78