Finding the Fourth Proportional to 8,786.27, 12,129.01 and 5,603.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,786.27 : 12,129.01 = 5,603.84 : x
2. Step 2: Convert to fraction form
   8,786.27/12,129.01 = 5,603.84/x
3. Step 3: Cross multiply
   8,786.27x = 12,129.01 × 5,603.84
4. Step 4: Simplify right side
   8,786.27x = 67,969,031.40
5. Step 5: Solve for x
   x = 67,969,031.40/8,786.27
6. Step 6: Final answer
   x = 7,735.82