Finding the Fourth Proportional to 16,001.75, 22,086.37 and 9,719.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,001.75 : 22,086.37 = 9,719.39 : x
2. Step 2: Convert to fraction form
   16,001.75/22,086.37 = 9,719.39/x
3. Step 3: Cross multiply
   16,001.75x = 22,086.37 × 9,719.39
4. Step 4: Simplify right side
   16,001.75x = 214,666,111.08
5. Step 5: Solve for x
   x = 214,666,111.08/16,001.75
6. Step 6: Final answer
   x = 13,415.16