Finding the Fourth Proportional to 8,913.63, 12,300.83 and 5,775.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.63 : 12,300.83 = 5,775.29 : x
2. Step 2: Convert to fraction form
   8,913.63/12,300.83 = 5,775.29/x
3. Step 3: Cross multiply
   8,913.63x = 12,300.83 × 5,775.29
4. Step 4: Simplify right side
   8,913.63x = 71,040,860.49
5. Step 5: Solve for x
   x = 71,040,860.49/8,913.63
6. Step 6: Final answer
   x = 7,969.91