Finding the Fourth Proportional to 8,646.34, 12,961.83 and 3,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,646.34 : 12,961.83 = 3,170.50 : x
2. Step 2: Convert to fraction form
   8,646.34/12,961.83 = 3,170.50/x
3. Step 3: Cross multiply
   8,646.34x = 12,961.83 × 3,170.50
4. Step 4: Simplify right side
   8,646.34x = 41,095,482.02
5. Step 5: Solve for x
   x = 41,095,482.02/8,646.34
6. Step 6: Final answer
   x = 4,752.93