Finding the Fourth Proportional to 6,783.98, 10,177.42 and 2,103.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,783.98 : 10,177.42 = 2,103.88 : x
2. Step 2: Convert to fraction form
   6,783.98/10,177.42 = 2,103.88/x
3. Step 3: Cross multiply
   6,783.98x = 10,177.42 × 2,103.88
4. Step 4: Simplify right side
   6,783.98x = 21,412,085.31
5. Step 5: Solve for x
   x = 21,412,085.31/6,783.98
6. Step 6: Final answer
   x = 3,156.27