Finding the Fourth Proportional to 3,710.72, 5,112.50 and 3,110.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.72 : 5,112.50 = 3,110.88 : x
2. Step 2: Convert to fraction form
   3,710.72/5,112.50 = 3,110.88/x
3. Step 3: Cross multiply
   3,710.72x = 5,112.50 × 3,110.88
4. Step 4: Simplify right side
   3,710.72x = 15,904,374
5. Step 5: Solve for x
   x = 15,904,374/3,710.72
6. Step 6: Final answer
   x = 4,286.06