Finding the Fourth Proportional to 9,551.12, 13,186.56 and 7,786.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,551.12 : 13,186.56 = 7,786.88 : x
2. Step 2: Convert to fraction form
   9,551.12/13,186.56 = 7,786.88/x
3. Step 3: Cross multiply
   9,551.12x = 13,186.56 × 7,786.88
4. Step 4: Simplify right side
   9,551.12x = 102,682,160.33
5. Step 5: Solve for x
   x = 102,682,160.33/9,551.12
6. Step 6: Final answer
   x = 10,750.80