Finding the Fourth Proportional to 11,786.78, 16,263.50 and 7,069.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,786.78 : 16,263.50 = 7,069.34 : x
2. Step 2: Convert to fraction form
   11,786.78/16,263.50 = 7,069.34/x
3. Step 3: Cross multiply
   11,786.78x = 16,263.50 × 7,069.34
4. Step 4: Simplify right side
   11,786.78x = 114,972,211.09
5. Step 5: Solve for x
   x = 114,972,211.09/11,786.78
6. Step 6: Final answer
   x = 9,754.34