Finding the Fourth Proportional to 16,559.31, 22,851.86 and 9,107.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,559.31 : 22,851.86 = 9,107.31 : x
2. Step 2: Convert to fraction form
   16,559.31/22,851.86 = 9,107.31/x
3. Step 3: Cross multiply
   16,559.31x = 22,851.86 × 9,107.31
4. Step 4: Simplify right side
   16,559.31x = 208,118,973.10
5. Step 5: Solve for x
   x = 208,118,973.10/16,559.31
6. Step 6: Final answer
   x = 12,568.09