Finding the Fourth Proportional to 8,598.85, 12,899.61 and 3,668.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,598.85 : 12,899.61 = 3,668.50 : x
2. Step 2: Convert to fraction form
   8,598.85/12,899.61 = 3,668.50/x
3. Step 3: Cross multiply
   8,598.85x = 12,899.61 × 3,668.50
4. Step 4: Simplify right side
   8,598.85x = 47,322,219.29
5. Step 5: Solve for x
   x = 47,322,219.29/8,598.85
6. Step 6: Final answer
   x = 5,503.32