Finding the Fourth Proportional to 10,669.20, 16,002.54 and 2,878.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,669.20 : 16,002.54 = 2,878.62 : x
2. Step 2: Convert to fraction form
   10,669.20/16,002.54 = 2,878.62/x
3. Step 3: Cross multiply
   10,669.20x = 16,002.54 × 2,878.62
4. Step 4: Simplify right side
   10,669.20x = 46,065,231.69
5. Step 5: Solve for x
   x = 46,065,231.69/10,669.20
6. Step 6: Final answer
   x = 4,317.59