Finding the Fourth Proportional to 12,703.98, 17,519.04 and 9,112.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,703.98 : 17,519.04 = 9,112.86 : x
2. Step 2: Convert to fraction form
   12,703.98/17,519.04 = 9,112.86/x
3. Step 3: Cross multiply
   12,703.98x = 17,519.04 × 9,112.86
4. Step 4: Simplify right side
   12,703.98x = 159,648,558.85
5. Step 5: Solve for x
   x = 159,648,558.85/12,703.98
6. Step 6: Final answer
   x = 12,566.81