Finding the Fourth Proportional to 16,743.48, 23,106.05 and 9,189.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,743.48 : 23,106.05 = 9,189.87 : x
2. Step 2: Convert to fraction form
   16,743.48/23,106.05 = 9,189.87/x
3. Step 3: Cross multiply
   16,743.48x = 23,106.05 × 9,189.87
4. Step 4: Simplify right side
   16,743.48x = 212,341,595.71
5. Step 5: Solve for x
   x = 212,341,595.71/16,743.48
6. Step 6: Final answer
   x = 12,682.05