Finding the Fourth Proportional to 16,769.91, 23,142.06 and 9,113.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,769.91 : 23,142.06 = 9,113.07 : x
2. Step 2: Convert to fraction form
   16,769.91/23,142.06 = 9,113.07/x
3. Step 3: Cross multiply
   16,769.91x = 23,142.06 × 9,113.07
4. Step 4: Simplify right side
   16,769.91x = 210,895,212.72
5. Step 5: Solve for x
   x = 210,895,212.72/16,769.91
6. Step 6: Final answer
   x = 12,575.81