Finding the Fourth Proportional to 16,611.89, 22,923.54 and 9,058.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,611.89 : 22,923.54 = 9,058.23 : x
2. Step 2: Convert to fraction form
   16,611.89/22,923.54 = 9,058.23/x
3. Step 3: Cross multiply
   16,611.89x = 22,923.54 × 9,058.23
4. Step 4: Simplify right side
   16,611.89x = 207,646,697.73
5. Step 5: Solve for x
   x = 207,646,697.73/16,611.89
6. Step 6: Final answer
   x = 12,499.89