Finding the Fourth Proportional to 16,390.04, 22,618.20 and 9,317.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,390.04 : 22,618.20 = 9,317.82 : x
2. Step 2: Convert to fraction form
   16,390.04/22,618.20 = 9,317.82/x
3. Step 3: Cross multiply
   16,390.04x = 22,618.20 × 9,317.82
4. Step 4: Simplify right side
   16,390.04x = 210,752,316.32
5. Step 5: Solve for x
   x = 210,752,316.32/16,390.04
6. Step 6: Final answer
   x = 12,858.56