Finding the Fourth Proportional to 10,362.89, 15,544.40 and 3,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,362.89 : 15,544.40 = 3,786.50 : x
2. Step 2: Convert to fraction form
   10,362.89/15,544.40 = 3,786.50/x
3. Step 3: Cross multiply
   10,362.89x = 15,544.40 × 3,786.50
4. Step 4: Simplify right side
   10,362.89x = 58,858,773.95
5. Step 5: Solve for x
   x = 58,858,773.95/10,362.89
6. Step 6: Final answer
   x = 5,679.77