Finding the Fourth Proportional to 16,098.76, 22,208.01 and 9,721.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,098.76 : 22,208.01 = 9,721.82 : x
2. Step 2: Convert to fraction form
   16,098.76/22,208.01 = 9,721.82/x
3. Step 3: Cross multiply
   16,098.76x = 22,208.01 × 9,721.82
4. Step 4: Simplify right side
   16,098.76x = 215,902,275.78
5. Step 5: Solve for x
   x = 215,902,275.78/16,098.76
6. Step 6: Final answer
   x = 13,411.11