Finding the Fourth Proportional to 16,762.69, 23,132.42 and 9,105.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,762.69 : 23,132.42 = 9,105.90 : x
2. Step 2: Convert to fraction form
   16,762.69/23,132.42 = 9,105.90/x
3. Step 3: Cross multiply
   16,762.69x = 23,132.42 × 9,105.90
4. Step 4: Simplify right side
   16,762.69x = 210,641,535.27
5. Step 5: Solve for x
   x = 210,641,535.27/16,762.69
6. Step 6: Final answer
   x = 12,566.10