Finding the Fourth Proportional to 11,622.69, 16,039.22 and 9,941.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,622.69 : 16,039.22 = 9,941.94 : x
2. Step 2: Convert to fraction form
   11,622.69/16,039.22 = 9,941.94/x
3. Step 3: Cross multiply
   11,622.69x = 16,039.22 × 9,941.94
4. Step 4: Simplify right side
   11,622.69x = 159,460,913.18
5. Step 5: Solve for x
   x = 159,460,913.18/11,622.69
6. Step 6: Final answer
   x = 13,719.79