Finding the Fourth Proportional to 11,769.82, 16,245.06 and 7,570.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,769.82 : 16,245.06 = 7,570.78 : x
2. Step 2: Convert to fraction form
   11,769.82/16,245.06 = 7,570.78/x
3. Step 3: Cross multiply
   11,769.82x = 16,245.06 × 7,570.78
4. Step 4: Simplify right side
   11,769.82x = 122,987,775.35
5. Step 5: Solve for x
   x = 122,987,775.35/11,769.82
6. Step 6: Final answer
   x = 10,449.42