Finding the Fourth Proportional to 8,104.61, 12,152.72 and 3,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,104.61 : 12,152.72 = 3,105.50 : x
2. Step 2: Convert to fraction form
   8,104.61/12,152.72 = 3,105.50/x
3. Step 3: Cross multiply
   8,104.61x = 12,152.72 × 3,105.50
4. Step 4: Simplify right side
   8,104.61x = 37,740,218.96
5. Step 5: Solve for x
   x = 37,740,218.96/8,104.61
6. Step 6: Final answer
   x = 4,656.63