Finding the Fourth Proportional to 16,225.94, 22,395.86 and 9,156.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,225.94 : 22,395.86 = 9,156.47 : x
2. Step 2: Convert to fraction form
   16,225.94/22,395.86 = 9,156.47/x
3. Step 3: Cross multiply
   16,225.94x = 22,395.86 × 9,156.47
4. Step 4: Simplify right side
   16,225.94x = 205,066,862.45
5. Step 5: Solve for x
   x = 205,066,862.45/16,225.94
6. Step 6: Final answer
   x = 12,638.22