Finding the Fourth Proportional to 13,855.56, 19,119.96 and 7,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,855.56 : 19,119.96 = 7,566.72 : x
2. Step 2: Convert to fraction form
   13,855.56/19,119.96 = 7,566.72/x
3. Step 3: Cross multiply
   13,855.56x = 19,119.96 × 7,566.72
4. Step 4: Simplify right side
   13,855.56x = 144,675,383.73
5. Step 5: Solve for x
   x = 144,675,383.73/13,855.56
6. Step 6: Final answer
   x = 10,441.68