Finding the Fourth Proportional to 10,866.52, 16,202.45 and 10,669.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,866.52 : 16,202.45 = 10,669.69 : x
2. Step 2: Convert to fraction form
   10,866.52/16,202.45 = 10,669.69/x
3. Step 3: Cross multiply
   10,866.52x = 16,202.45 × 10,669.69
4. Step 4: Simplify right side
   10,866.52x = 172,875,118.74
5. Step 5: Solve for x
   x = 172,875,118.74/10,866.52
6. Step 6: Final answer
   x = 15,908.97