Finding the Fourth Proportional to 16,439.74, 24,674.25 and 7,679.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,439.74 : 24,674.25 = 7,679.59 : x
2. Step 2: Convert to fraction form
   16,439.74/24,674.25 = 7,679.59/x
3. Step 3: Cross multiply
   16,439.74x = 24,674.25 × 7,679.59
4. Step 4: Simplify right side
   16,439.74x = 189,488,123.56
5. Step 5: Solve for x
   x = 189,488,123.56/16,439.74
6. Step 6: Final answer
   x = 11,526.22