Finding the Fourth Proportional to 16,695.79, 23,036.37 and 9,980.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,695.79 : 23,036.37 = 9,980.27 : x
2. Step 2: Convert to fraction form
   16,695.79/23,036.37 = 9,980.27/x
3. Step 3: Cross multiply
   16,695.79x = 23,036.37 × 9,980.27
4. Step 4: Simplify right side
   16,695.79x = 229,909,192.42
5. Step 5: Solve for x
   x = 229,909,192.42/16,695.79
6. Step 6: Final answer
   x = 13,770.49