Finding the Fourth Proportional to 16,666.37, 22,990.94 and 12,123.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,666.37 : 22,990.94 = 12,123.94 : x
2. Step 2: Convert to fraction form
   16,666.37/22,990.94 = 12,123.94/x
3. Step 3: Cross multiply
   16,666.37x = 22,990.94 × 12,123.94
4. Step 4: Simplify right side
   16,666.37x = 278,740,659.01
5. Step 5: Solve for x
   x = 278,740,659.01/16,666.37
6. Step 6: Final answer
   x = 16,724.74