Finding the Fourth Proportional to 16,015.49, 22,100.27 and 9,640.83

Step by Step Solution

1. Step 1: Write the proportion equation
   16,015.49 : 22,100.27 = 9,640.83 : x
2. Step 2: Convert to fraction form
   16,015.49/22,100.27 = 9,640.83/x
3. Step 3: Cross multiply
   16,015.49x = 22,100.27 × 9,640.83
4. Step 4: Simplify right side
   16,015.49x = 213,064,897.82
5. Step 5: Solve for x
   x = 213,064,897.82/16,015.49
6. Step 6: Final answer
   x = 13,303.68