Finding the Fourth Proportional to 16,411.71, 22,647.87 and 9,337.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,411.71 : 22,647.87 = 9,337.98 : x
2. Step 2: Convert to fraction form
   16,411.71/22,647.87 = 9,337.98/x
3. Step 3: Cross multiply
   16,411.71x = 22,647.87 × 9,337.98
4. Step 4: Simplify right side
   16,411.71x = 211,485,357.10
5. Step 5: Solve for x
   x = 211,485,357.10/16,411.71
6. Step 6: Final answer
   x = 12,886.25