Finding the Fourth Proportional to 12,755.72, 17,604.00 and 7,091.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,755.72 : 17,604.00 = 7,091.57 : x
2. Step 2: Convert to fraction form
   12,755.72/17,604.00 = 7,091.57/x
3. Step 3: Cross multiply
   12,755.72x = 17,604.00 × 7,091.57
4. Step 4: Simplify right side
   12,755.72x = 124,840,015.70
5. Step 5: Solve for x
   x = 124,840,015.70/12,755.72
6. Step 6: Final answer
   x = 9,786.99