Finding the Fourth Proportional to 16,711.86, 23,056.71 and 9,638.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,711.86 : 23,056.71 = 9,638.10 : x
2. Step 2: Convert to fraction form
   16,711.86/23,056.71 = 9,638.10/x
3. Step 3: Cross multiply
   16,711.86x = 23,056.71 × 9,638.10
4. Step 4: Simplify right side
   16,711.86x = 222,222,876.65
5. Step 5: Solve for x
   x = 222,222,876.65/16,711.86
6. Step 6: Final answer
   x = 13,297.32