Finding the Fourth Proportional to 5,150.49, 7,726.34 and 3,860.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.49 : 7,726.34 = 3,860.16 : x
2. Step 2: Convert to fraction form
   5,150.49/7,726.34 = 3,860.16/x
3. Step 3: Cross multiply
   5,150.49x = 7,726.34 × 3,860.16
4. Step 4: Simplify right side
   5,150.49x = 29,824,908.61
5. Step 5: Solve for x
   x = 29,824,908.61/5,150.49
6. Step 6: Final answer
   x = 5,790.69