Finding the Fourth Proportional to 16,489.76, 24,725.39 and 7,123.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,489.76 : 24,725.39 = 7,123.94 : x
2. Step 2: Convert to fraction form
   16,489.76/24,725.39 = 7,123.94/x
3. Step 3: Cross multiply
   16,489.76x = 24,725.39 × 7,123.94
4. Step 4: Simplify right side
   16,489.76x = 176,142,035.59
5. Step 5: Solve for x
   x = 176,142,035.59/16,489.76
6. Step 6: Final answer
   x = 10,681.91