Finding the Fourth Proportional to 10,719.87, 16,075.86 and 3,698.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,719.87 : 16,075.86 = 3,698.09 : x
2. Step 2: Convert to fraction form
   10,719.87/16,075.86 = 3,698.09/x
3. Step 3: Cross multiply
   10,719.87x = 16,075.86 × 3,698.09
4. Step 4: Simplify right side
   10,719.87x = 59,449,977.11
5. Step 5: Solve for x
   x = 59,449,977.11/10,719.87
6. Step 6: Final answer
   x = 5,545.77