Finding the Fourth Proportional to 8,561.00, 12,822.77 and 5,264.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,561.00 : 12,822.77 = 5,264.09 : x
2. Step 2: Convert to fraction form
   8,561.00/12,822.77 = 5,264.09/x
3. Step 3: Cross multiply
   8,561.00x = 12,822.77 × 5,264.09
4. Step 4: Simplify right side
   8,561.00x = 67,500,124.90
5. Step 5: Solve for x
   x = 67,500,124.90/8,561.00
6. Step 6: Final answer
   x = 7,884.61