Finding the Fourth Proportional to 12,703.98, 19,057.77 and 3,939.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,703.98 : 19,057.77 = 3,939.63 : x
2. Step 2: Convert to fraction form
   12,703.98/19,057.77 = 3,939.63/x
3. Step 3: Cross multiply
   12,703.98x = 19,057.77 × 3,939.63
4. Step 4: Simplify right side
   12,703.98x = 75,080,562.43
5. Step 5: Solve for x
   x = 75,080,562.43/12,703.98
6. Step 6: Final answer
   x = 5,910.00