Finding the Fourth Proportional to 8,861.69, 13,291.41 and 5,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,861.69 : 13,291.41 = 5,564.72 : x
2. Step 2: Convert to fraction form
   8,861.69/13,291.41 = 5,564.72/x
3. Step 3: Cross multiply
   8,861.69x = 13,291.41 × 5,564.72
4. Step 4: Simplify right side
   8,861.69x = 73,962,975.06
5. Step 5: Solve for x
   x = 73,962,975.06/8,861.69
6. Step 6: Final answer
   x = 8,346.37