Finding the Fourth Proportional to 12,770.88, 17,623.18 and 7,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770.88 : 17,623.18 = 7,105.96 : x
2. Step 2: Convert to fraction form
   12,770.88/17,623.18 = 7,105.96/x
3. Step 3: Cross multiply
   12,770.88x = 17,623.18 × 7,105.96
4. Step 4: Simplify right side
   12,770.88x = 125,229,612.15
5. Step 5: Solve for x
   x = 125,229,612.15/12,770.88
6. Step 6: Final answer
   x = 9,805.87