Finding the Fourth Proportional to 5,003.78, 7,505.81 and 1,716.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,003.78 : 7,505.81 = 1,716.82 : x
2. Step 2: Convert to fraction form
   5,003.78/7,505.81 = 1,716.82/x
3. Step 3: Cross multiply
   5,003.78x = 7,505.81 × 1,716.82
4. Step 4: Simplify right side
   5,003.78x = 12,886,110.25
5. Step 5: Solve for x
   x = 12,886,110.25/5,003.78
6. Step 6: Final answer
   x = 2,575.28