Finding the Fourth Proportional to 8,564.00, 12,845.72 and 3,880.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,564.00 : 12,845.72 = 3,880.58 : x
2. Step 2: Convert to fraction form
   8,564.00/12,845.72 = 3,880.58/x
3. Step 3: Cross multiply
   8,564.00x = 12,845.72 × 3,880.58
4. Step 4: Simplify right side
   8,564.00x = 49,848,789.59
5. Step 5: Solve for x
   x = 49,848,789.59/8,564.00
6. Step 6: Final answer
   x = 5,820.74