Finding the Fourth Proportional to 6,483.33, 9,726.53 and 2,100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,483.33 : 9,726.53 = 2,100.78 : x
2. Step 2: Convert to fraction form
   6,483.33/9,726.53 = 2,100.78/x
3. Step 3: Cross multiply
   6,483.33x = 9,726.53 × 2,100.78
4. Step 4: Simplify right side
   6,483.33x = 20,433,299.69
5. Step 5: Solve for x
   x = 20,433,299.69/6,483.33
6. Step 6: Final answer
   x = 3,151.67