Finding the Fourth Proportional to 10,249.16, 15,366.72 and 3,675.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,249.16 : 15,366.72 = 3,675.20 : x
2. Step 2: Convert to fraction form
   10,249.16/15,366.72 = 3,675.20/x
3. Step 3: Cross multiply
   10,249.16x = 15,366.72 × 3,675.20
4. Step 4: Simplify right side
   10,249.16x = 56,475,769.34
5. Step 5: Solve for x
   x = 56,475,769.34/10,249.16
6. Step 6: Final answer
   x = 5,510.28