Finding the Fourth Proportional to 9,755.72, 14,634.42 and 7,155.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,755.72 : 14,634.42 = 7,155.55 : x
2. Step 2: Convert to fraction form
   9,755.72/14,634.42 = 7,155.55/x
3. Step 3: Cross multiply
   9,755.72x = 14,634.42 × 7,155.55
4. Step 4: Simplify right side
   9,755.72x = 104,717,324.03
5. Step 5: Solve for x
   x = 104,717,324.03/9,755.72
6. Step 6: Final answer
   x = 10,733.94