Finding the Fourth Proportional to 5,003.55, 7,500.16 and 1,715.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,003.55 : 7,500.16 = 1,715.76 : x
2. Step 2: Convert to fraction form
   5,003.55/7,500.16 = 1,715.76/x
3. Step 3: Cross multiply
   5,003.55x = 7,500.16 × 1,715.76
4. Step 4: Simplify right side
   5,003.55x = 12,868,474.52
5. Step 5: Solve for x
   x = 12,868,474.52/5,003.55
6. Step 6: Final answer
   x = 2,571.87