Finding the Fourth Proportional to 16,638.98, 22,962.71 and 9,086.01

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638.98 : 22,962.71 = 9,086.01 : x
2. Step 2: Convert to fraction form
   16,638.98/22,962.71 = 9,086.01/x
3. Step 3: Cross multiply
   16,638.98x = 22,962.71 × 9,086.01
4. Step 4: Simplify right side
   16,638.98x = 208,639,349.29
5. Step 5: Solve for x
   x = 208,639,349.29/16,638.98
6. Step 6: Final answer
   x = 12,539.19