Finding the Fourth Proportional to 16,458.57, 22,712.40 and 9,384.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,458.57 : 22,712.40 = 9,384.84 : x
2. Step 2: Convert to fraction form
   16,458.57/22,712.40 = 9,384.84/x
3. Step 3: Cross multiply
   16,458.57x = 22,712.40 × 9,384.84
4. Step 4: Simplify right side
   16,458.57x = 213,152,240.02
5. Step 5: Solve for x
   x = 213,152,240.02/16,458.57
6. Step 6: Final answer
   x = 12,950.84