Finding the Fourth Proportional to 6,169.61, 8,513.60 and 3,516.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,169.61 : 8,513.60 = 3,516.50 : x
2. Step 2: Convert to fraction form
   6,169.61/8,513.60 = 3,516.50/x
3. Step 3: Cross multiply
   6,169.61x = 8,513.60 × 3,516.50
4. Step 4: Simplify right side
   6,169.61x = 29,938,014.25
5. Step 5: Solve for x
   x = 29,938,014.25/6,169.61
6. Step 6: Final answer
   x = 4,852.50