Finding the Fourth Proportional to 16,172.12, 22,317.43 and 9,098.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,172.12 : 22,317.43 = 9,098.58 : x
2. Step 2: Convert to fraction form
   16,172.12/22,317.43 = 9,098.58/x
3. Step 3: Cross multiply
   16,172.12x = 22,317.43 × 9,098.58
4. Step 4: Simplify right side
   16,172.12x = 203,056,922.25
5. Step 5: Solve for x
   x = 203,056,922.25/16,172.12
6. Step 6: Final answer
   x = 12,555.99