Finding the Fourth Proportional to 16,977.84, 23,429.30 and 9,423.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,977.84 : 23,429.30 = 9,423.92 : x
2. Step 2: Convert to fraction form
   16,977.84/23,429.30 = 9,423.92/x
3. Step 3: Cross multiply
   16,977.84x = 23,429.30 × 9,423.92
4. Step 4: Simplify right side
   16,977.84x = 220,795,848.86
5. Step 5: Solve for x
   x = 220,795,848.86/16,977.84
6. Step 6: Final answer
   x = 13,004.94