Finding the Fourth Proportional to 8,719.87, 13,075.71 and 3,169.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,719.87 : 13,075.71 = 3,169.34 : x
2. Step 2: Convert to fraction form
   8,719.87/13,075.71 = 3,169.34/x
3. Step 3: Cross multiply
   8,719.87x = 13,075.71 × 3,169.34
4. Step 4: Simplify right side
   8,719.87x = 41,441,370.73
5. Step 5: Solve for x
   x = 41,441,370.73/8,719.87
6. Step 6: Final answer
   x = 4,752.52