Finding the Fourth Proportional to 16,645.86, 22,971.60 and 9,476.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,645.86 : 22,971.60 = 9,476.82 : x
2. Step 2: Convert to fraction form
   16,645.86/22,971.60 = 9,476.82/x
3. Step 3: Cross multiply
   16,645.86x = 22,971.60 × 9,476.82
4. Step 4: Simplify right side
   16,645.86x = 217,697,718.31
5. Step 5: Solve for x
   x = 217,697,718.31/16,645.86
6. Step 6: Final answer
   x = 13,078.19