Finding the Fourth Proportional to 16,656.59, 22,986.37 and 9,940.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,656.59 : 22,986.37 = 9,940.91 : x
2. Step 2: Convert to fraction form
   16,656.59/22,986.37 = 9,940.91/x
3. Step 3: Cross multiply
   16,656.59x = 22,986.37 × 9,940.91
4. Step 4: Simplify right side
   16,656.59x = 228,505,320.46
5. Step 5: Solve for x
   x = 228,505,320.46/16,656.59
6. Step 6: Final answer
   x = 13,718.62