Finding the Fourth Proportional to 16,976.54, 23,425.47 and 9,421.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,976.54 : 23,425.47 = 9,421.82 : x
2. Step 2: Convert to fraction form
   16,976.54/23,425.47 = 9,421.82/x
3. Step 3: Cross multiply
   16,976.54x = 23,425.47 × 9,421.82
4. Step 4: Simplify right side
   16,976.54x = 220,710,561.76
5. Step 5: Solve for x
   x = 220,710,561.76/16,976.54
6. Step 6: Final answer
   x = 13,000.92