Finding the Fourth Proportional to 16,486.47, 22,755.42 and 9,417.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,486.47 : 22,755.42 = 9,417.02 : x
2. Step 2: Convert to fraction form
   16,486.47/22,755.42 = 9,417.02/x
3. Step 3: Cross multiply
   16,486.47x = 22,755.42 × 9,417.02
4. Step 4: Simplify right side
   16,486.47x = 214,288,131.47
5. Step 5: Solve for x
   x = 214,288,131.47/16,486.47
6. Step 6: Final answer
   x = 12,997.82