Finding the Fourth Proportional to 10,977.46, 16,467.78 and 3,580.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,977.46 : 16,467.78 = 3,580.09 : x
2. Step 2: Convert to fraction form
   10,977.46/16,467.78 = 3,580.09/x
3. Step 3: Cross multiply
   10,977.46x = 16,467.78 × 3,580.09
4. Step 4: Simplify right side
   10,977.46x = 58,956,134.50
5. Step 5: Solve for x
   x = 58,956,134.50/10,977.46
6. Step 6: Final answer
   x = 5,370.65